A Concilio Constantinopolitano I (Apostolic Letter) A quarantacinque anni (Apostolic Exhortation) A quo die (Encyclical) A quo primum (Encyclical) Ab Apostolici solii (Encyclical) Ab initio (Motu Proprio) Abhinc duos annos (Motu Proprio) Acerba Animi (Encyclical) Acerbo nimis (Encyclical) Acerrimo Mœrore (Letter) Actio pastoralis (Instruction) Actus formalis defectionis ab Ecclesia catholica (Note) Ad Apostolicæ Sedis (Apostolic Letter) Ad apostolicæ vocis oraculum (Bull) Ad Apostolorum Principis (Encyclical) Ad beatissimi Apostolorum Principis (Encyclical) Ad Cæli Reginam (Encyclical) Ad Catholici sacerdotii (Encyclical) Ad charisma tuendum (Motu Proprio) Ad diem illum lætissimum (Encyclical) Ad extremas (Encyclical) Ad futuram rei memoriam (Motu Proprio) Ad gentes (Conciliar Decree) Ad gravissimum (Encyclical) Ad hoc usque tempus (Motu Proprio) Ad Musicæ Sacræ (Motu Proprio) Ad pascendum (Motu Proprio) Ad Petri Cathedram (Encyclical) Ad plurimas easque gravissimas (Encyclical) Ad purpuratorum Patrum Collegium (Motu Proprio) Ad resurgendum cum Christo (Instruction) Ad salutem (Encyclical) Ad Sinarum gentem (Encyclical) Ad suburbicarias diœceses (Motu Proprio) Ad theologiam promovendam (Motu Proprio) Ad totam Ecclesiam (Directory) Ad tuendam fidem (Motu Proprio) Adiutricem (Encyclical) Admirabile signum (Apostolic Letter) Ætatis novæ (Instruction) Æterna Dei sapientia (Encyclical) Æterni Patris (Bull) Æterni Patris (Encyclical) Affari vos (Encyclical) Afflictas in Hispania (Encyclical) Africæ Munus (Apostolic Exhortation) Africæ terrarum (Apostolic Letter) Africæ Terrarum (Motu Proprio) Alias Nos (Apostolic Constitution) Allatæ sunt (Encyclical) Alli dilettissimi sudditi (Encyclical) Alloquentes proxime (Motu Proprio) Amantissima providentia (Apostolic Letter) Amantissimi Redemptoris (Encyclical) Amantissimus humani (Encyclical) Ambulate in dilectione (Apostolic Letter) Amoris lætitia (Apostolic Exhortation) Amoris officio (Apostolic Letter) Amplissimum Conlegium (Speech) Amplissimum Consessum (Speech) Anglicanorum cœtibus (Apostolic Constitution) Animarum studio (Motu Proprio) Anni Sacri (Encyclical) Annum sacrum (Encyclical) Annus Domini placabilis (Bull) Annus Fere (Apostolic Letter) Annus iam plenus (Encyclical) Annus internationalis familiæ (Curial Letter) Antiqua ordinatione (Motu Proprio) Antiquæ nobilitatis (Apostolic Letter) Antiquorum habet digna fide relatio (Bull) Antiquum ministerium (Motu Proprio) Aperite portas Redemptori (Bull) Aperuit illis (Motu Proprio) Apostolatus peragendi (Motu Proprio) Apostolica constitutio (Encyclical) Apostolica sollicitudo (Motu Proprio) Apostolicæ caritatis (Motu Proprio) Apostolicæ Curæ (Bull) Apostolicæ nostræ caritatis (Encyclical) Apostolicæ Romanorum Pontificum (Motu Proprio) Apostolicam actuositatem (Conciliar Decree) Apostolici ministerio (Encyclical) Apostolorum limina (Bull) Apostolorum successores (Directory) Apostolos suos (Motu Proprio) Appetente sacro (Encyclical) Appropinquante Concilio (Motu Proprio) Appropinquat dilectissimi Filii (Bull) Arcano divinæ (Encyclical) Arcanum divinæ (Encyclical) Ardens felicitatis (Instruction) Asperis commoti (Apostolic Exhortation) Audite populi de longe (Message) Augustinum Hipponensem (Apostolic Letter) Augustissimæ Virginis Mariæ (Encyclical) Augustissimam (Encyclical) Auspicato concessum (Encyclical) Auspicia quædam (Encyclical) Authenticum charismatis (Motu Proprio) Bellum post (Letter) Beneficia Dei (Encyclical) Benignitas et humanitas (Message) Bibliorum Sacrorum Nova Vulgata (Bible) Bibliorum scientiam (Apostolic Letter) Bis sæculari die (Apostolic Constitution) Boni Pastoris (Motu Proprio) Bonum sane (Motu Proprio) Breviarium Romanum (Liturgical Book) Breviarium Romanum (Liturgical Book) Breviarium Romanum (Liturgical Book) Cæremoniale Episcoporum (Liturgical Book) Calendaria Particularia (Instruction) Caritas in Veritate (Encyclical) Caritate Christi compulsi (Encyclical) Caritatis providentiæque (Encyclical) Caritatis studium (Encyclical) Casti connubii (Encyclical) Catechesi tradendæ (Apostolic Exhortation) Catechismum Catholicæ Ecclesiæ (Catechism) Catholica ecclesia (Motu Proprio) Catholicæ Ecclesiæ (Encyclical) Catholicam Christi Ecclesiam (Motu Proprio) Causas matrimoniales (Motu Proprio) Centesimus annus (Encyclical) Ceteriores nos (Letter) Charitas (Encyclical) Charitate Christi (Encyclical) Christi Matri (Encyclical) Christi Nomen (Encyclical) Christi nomen (Apostolic Letter) Christianæ reipublicæ (Encyclical) Christifideles laici (Apostolic Exhortation) Christus Dominus (Apostolic Constitution) Christus Dominus (Conciliar Decree) Christus vivit (Apostolic Exhortation) Codex Canonum Ecclesiarum Orientalium (Canon Law) Codex Iuris Canonici (Canon Law) Codex Iuris Canonici (1917) (Canon Law) Collectio Missarum de Beata Maria Virgine (Liturgical Book) Commissum divinitus (Encyclical) Commissum nobis (Apostolic Letter) Commisum nobis (Apostolic Constitution) Communio et progressio (Document) Communionis notio (Curial Letter) Communis Vita (Motu Proprio) Communium interpretes dolorum (Encyclical) Communium Rerum (Encyclical) Compendium Catechismi Ecclesiæ Catholicæ (Catechism) Compendium Eucharisticum (Directory) Con grande, profondo (Speech) Con matrimonialium causarum (Motu Proprio) Conditum annum (Letter) Conflictatio bonorum (Apostolic Exhortation) Consilium (Motu Proprio) Consilium a decessore (Motu Proprio) Constans nobis (Apostolic Constitution) Constanti Hungarorum (Encyclical) Cor Orans (Instruction) Crimen Sollicitationis (Instruction) Crux pectoralis (Motu Proprio) Cum Catholica (Apostolic Letter) Cum ex apostolico (Apostolic Letter) Cum gravissima (Motu Proprio) Cum in Vallem (Letter) Cum inde (Motu Proprio) Cum Iuris Canonici (Motu Proprio) Cum multa sint (Encyclical) Cum nostra (Decree) Cum nostra ætate (Declaration) Cum nuper (Encyclical) Cum œcumenicum concilium (Circular Letter) Cum primum (Encyclical) Cum primum (Encyclical) Cum proxime (Motu Proprio) Cum religiosi (Encyclical) Cum sæpe (Encyclical) Cum Sancta Mater Ecclesia (Encyclical) Cum sanctissima (Decree) Cum sanctissimus (Instruction) Cum summi (Encyclical) Cum tu (Apostolic Letter) Cupimus Imprimis (Apostolic Letter) Datis nuperrime (Encyclical) De Benedictionibus (Liturgical Book) De concordia inter Codices (Motu Proprio) De episcoporum muneribus (Motu Proprio) De Exorcismis et Supplicationibus Quibusdam (Liturgical Book) De Exorcismis et Supplicationibus Quibusdam (Liturgical Book) De institutione catechistarum (Liturgical Book) De institutione Lectorum et Acolytorum (Liturgical Book) De musica sacra (Instruction) De ordinatione Episcopi, Presbyterorum et Diaconorum (Liturgical Book) De ordinatione Episcopi, Presbyterorum et Diaconorum (Liturgical Book) De Pontificio Consilio Ecclesiasticis Italiæ Tabularis curandis (Motu Proprio) De Sacra Communione et de Cultu Mysterii Eucharistici extra Missam (Liturgical Book) De titulo basilicæ minoris (Document) Decessor Noster (Motu Proprio) Decessor Noster (Apostolic Letter) Decessores nostri (Motu Proprio) Decet quam maxime (Encyclical) Dei filius (Conciliar Constitution) Dei Providentis (Motu Proprio) Dei verbum (Conciliar Constitution) Deiparæ Virginis Mariæ (Encyclical) Desiderio desideravi (Apostolic Letter) Deus caritas est (Encyclical) Deus Scientiarum Dominus (Apostolic Constitution) Dies Domini (Apostolic Letter) Dignitas connubii (Instruction) Dignitas Infinita (Declaration) Dignitas Personæ (Instruction) Dignitatis humanæ (Conciliar Declaration) Dilecti amici (Apostolic Letter) Dilectissima nobis (Encyclical) Dilectus filius (Apostolic Letter) Directorium de missis cum pueris (Directory) Diu Satis (Encyclical) Diuturni temporis (Encyclical) Diuturnum illud (Encyclical) Dives in Misericordia (Encyclical) Dives in misericordia Deus (Apostolic Letter) Divinæ Consortium Naturæ (Apostolic Constitution) Divini amoris scientia (Apostolic Letter) Divini cultus (Bull) Divini illius magistri (Encyclical) Divini Redemptoris (Encyclical) Divino afflante Spiritu (Encyclical) Divinum Illud munus (Encyclical) Divinus Perfectionis Magister (Apostolic Constitution) Doctor mellifluus (Encyclical) Dolendum profecto (Letter) Dolentium hominum (Motu Proprio) Dominicæ cenæ (Letter) Dominum et vivificantem (Encyclical) Dominus ac Redemptor noster Jesus (Bull) Dominus Iesus (Declaration) Domus Dei (Decree) Domus Ecclesiæ (Decree) Donum veritatis (Instruction) Donum vitæ (Instruction) Dudum felicis (Bull) Dum Christus Dominus (Message) Dum datur nobis (Message) Dum Gravissimum (Message) Dum mærenti animo (Apostolic Letter) Dum multa (Encyclical) Duodecimum sæculum (Apostolic Letter) E supremi apostolatus cathedra (Encyclical) Ecclesia Christi (Encyclical) Ecclesia de Eucharistia (Encyclical) Ecclesia Dei (Motu Proprio) Ecclesia Dei (Apostolic Letter) Ecclesia in Africa (Apostolic Exhortation) Ecclesia in America (Apostolic Exhortation) Ecclesia in Asia (Apostolic Exhortation) Ecclesia in Europa (Apostolic Exhortation) Ecclesia in Medio Oriente (Apostolic Exhortation) Ecclesia in Oceania (Apostolic Exhortation) Ecclesia in Urbe (Apostolic Constitution) Ecclesiæ de mysterio (Instruction) Ecclesiæ fastos (Encyclical) Ecclesiæ Sanctæ (Motu Proprio) Ecclesiæ semper (Decree) Ecclesiæ Sponsæ Imago (Instruction) Ecclesiæ unitatem (Motu Proprio) Ecclesiam a Jesu (Bull) Ecclesiam Dei (Encyclical) Ecclesiam suam (Encyclical) Edita a nobis (Motu Proprio) Editæ Sæpe (Encyclical) Egregiæ Virtutis (Apostolic Letter) Enchiridion indulgentiarum (1950) (Norms) Enchiridion indulgentiarum, 3 (Norms) Enchiridion indulgentiarum, 2 (Norms) Enchiridion indulgentiarum, 1 (Norms) Enchiridion indulgentiarum, 4 (Norms) Episcopalis communio (Apostolic Constitution) Episcopalis potestatis (Motu Proprio) Equestres Ordines (Motu Proprio) Erga migrantes caritas Christi (Instruction) Etsi cunctas (Encyclical) Etsi multa luctuosa (Encyclical) Etsi nos (Encyclical) Etsi nos in (Apostolic Constitution) Eucharistiæ participationem (Circular Letter) Eucharistiæ sacramentum (Decree) Eucharisticum mysterium (Instruction) Euntes in mundum universum (Apostolic Letter) Europæ Orientalis (Motu Proprio) Evangelica testificatio (Apostolic Exhortation) Evangelii Gaudium (Apostolic Exhortation) Evangelii nuntiandi (Apostolic Exhortation) Evangelii præcones (Encyclical) Evangelium vitæ (Encyclical) Ex actis tempore (Apostolic Constitution) Ex aliis nostris (Encyclical) Ex corde Ecclesiæ (Apostolic Constitution) Ex hac (Apostolic Letter) Ex hac excelsa (Apostolic Letter) Ex hac sublimi (Apostolic Letter) Ex omnibus (Encyclical) Ex quo Ecclesiam (Encyclical) Ex quo ecclesiam (Bull) Ex quo infensissimi (Encyclical) Ex quo primum (Encyclical) Exeunte iam anno (Encyclical) Eximiam tuam (Apostolic Letter) Exultabat spiritus (Bull) Exultavit cor nostrum (Encyclical) Familia a Deo instituta (Motu Proprio) Familiaris consortio (Apostolic Exhortation) Fausto appetente die (Encyclical) Fidei custos (Instruction) Fidei depositum (Apostolic Constitution) Fidei donum (Encyclical) Fidei propagandæ (Motu Proprio) Fidelis dispensator et prudens (Motu Proprio) Fidem servare (Motu Proprio) Fidentem piumque animum (Encyclical) Fides et ratio (Encyclical) Fides per doctrinam (Motu Proprio) Fiducia Supplicans (Declaration) Finis Concilio Œcumenico Vaticano II (Motu Proprio) Firma in traditione (Motu Proprio) Formatio permanens (Circular Letter) Friburgensis archidiœcesis (Apostolic Letter) Fulgens corona (Encyclical) Fulgens radiatur (Encyclical) Gaudete et exsultate (Apostolic Exhortation) Gaudete in Domino (Apostolic Exhortation) Gaudium et spes (Conciliar Constitution) Geminata Lætitia (Letter) Gestis Verbisque (Note) Graduale romanum (1974) (Liturgical Book) | Graduale romanum (1908) (Liturgical Book) Graduale simplex (in usum minororum ecclesiarum) (Liturgical Book) Graduale simplex (in usum minororum ecclesiarum) (Liturgical Book) Graduale triplex seu Graduale romanum rhythmicis signis ornatum (Liturgical Book) Grande munus (Encyclical) Grata recordatio (Encyclical) Gratissimam Sane (Letter) Gratum Nobis (Speech) Graves ac diuturnæ (Encyclical) Graves de communi Re (Encyclical) Gravibus ecclesiæ sed sæculi calamitatis (Bull) Gravissimas (Encyclical) Gravissimas inter (Encyclical) Gravissimo officii munere (Encyclical) Gravissimum educationis (Conciliar Declaration) Hac sollemni hora (Message) Hærent animo (Apostolic Exhortation) Haurietis aquas (Encyclical) Homosexualitatis problema (Curial Letter) Humanæ salutis (Apostolic Constitution) Humanæ vitæ (Encyclical) Humanam progressionem (Motu Proprio) Humani generis (Encyclical) Humani generis redemptionem (Encyclical) Humanum genus (Encyclical) Iam annus (Speech) Iam inde (Apostolic Letter) Iam Pridem (Motu Proprio) Iam vos omnes (Encyclical) Iamdudum (Encyclical) Iamdum cernimus (Encyclical) Iampridem nobis (Encyclical) Immensa (Apostolic Constitution) Immensa et innumerabilia (Bull) Immensæ caritatis (Instruction) Immortale Dei (Encyclical) Impensiore caritate (Apostolic Letter) In amplissimo (Encyclical) In auspicando super (Apostolic Exhortation) In celebratione Missæ (Declaration) In cotidianis precibus (Motu Proprio) In dominico agro (Encyclical) In ecclesiarum communione (Apostolic Constitution) In eminenti apostolatus (Bull) In Fructibus Multis (Motu Proprio) In hac tanta (Encyclical) In Ipso (Encyclical) In magnis illis (Encyclical) In multiplicibus curis (Encyclical) In nomine Domini (Apostolic Constitution) In plurimis (Encyclical) In præclara summorum (Encyclical) In quibus rerum circumstantiis (Instruction) In quibusdam Ecclesiæ partibus (Curial Letter) In Spiritu Sancto (Apostolic Letter) In supremi apostolatus (Encyclical) In Supremo Apostolatus (Apostolic Constitution) Inæstimabile donum (Instruction) Incarnationis mysterium (Bull) Inclita toto (Motu Proprio) Inclytum patriarcham (Apostolic Letter) Incredibili afflictamur (Encyclical) Incruentum Altaris (Bull) Inde a Pontificatus (Motu Proprio) Inde a primis (Apostolic Letter) Inde Ab Aliquot Annis (Curial Letter) Index ac Status Causarum (1999) (Document) Index ac Status Causarum (1985) (Document) Index Sedium Titularium Archiepiscopalium et Episcopalium (Document) Indulgentiarum doctrina (Apostolic Constitution) Ineffabili providentia summi Patris (Bull) Ineffabilis Deus (Apostolic Constitution) Infinita Dei misericordia (Bull) Ingravescentem Ætatem (Motu Proprio) Ingravescentibus malis (Encyclical) Ingruentium malorum (Encyclical) Inimica vis (Encyclical) Iniquis afflictisque (Encyclical) Inscrutabile (Encyclical) Inscrutabili Dei consilio (Encyclical) Inscrutabili divinæ sapientiæ (Encyclical) Insignes (Encyclical) Institutio Generalis Missalis Romani, 4 (Norms) Institutio Generalis Missalis Romani, 5 (Norms) Institutio Generalis Missalis Romani, 1 (Norms) Institutio Generalis Missalis Romani, 2 (Norms) Institutio Generalis Missalis Romani, 3 (Norms) Institutio Generalis Missalis Romani, 5 (interim) (Norms) Institutio Missalis Ambrosiani (Norms) Integræ servandæ (Motu Proprio) Inter causas multiplices (Bull) Inter cœtera (Instruction) Inter eximia episcopalis (Motu Proprio) Inter Graves (Encyclical) Inter graves (Encyclical) Inter gravissimas (Encyclical) Inter gravissimas (Encyclical) Inter Insigniores (Declaration) Inter mirifica (Conciliar Decree) Inter multiplices (Encyclical) Inter munera (Circular Letter) Inter munera academiarum (Motu Proprio) Inter œcumenici (Instruction) Inter Præcipuas (Encyclical) Inter præclara (Instruction) Inter præstantiores (Apostolic Letter) Inter sollecitudines et coram nobis (Bull) Intima Ecclesiæ natura (Motu Proprio) Investigabiles divitias Christi (Apostolic Letter) Invicti athletæ (Encyclical) Iucunda Sane (Encyclical) Iucunda semper expectatione (Encyclical) Iura et bona (Declaration) Iusti iudicis (Motu Proprio) Iustitiam et pacem (Motu Proprio) Iuvenescit Ecclesia (Curial Letter) Jubilæum maximum (Bull) Laborem exercens (Encyclical) Lacrimabili Statu (Encyclical) Lætamur admodum (Encyclical) Lætamur magnopere (Apostolic Letter) Lætitiæ plena (Decree) Lætitiæ sanctæ (Encyclical) Læto iucundoque (Letter) Lamentabili sane (Decree) Latina lingua (Motu Proprio) Latinarum litterarum (Motu Proprio) Laudate Deum (Apostolic Exhortation) Laudis canticum (Apostolic Constitution) Le sollecitudini crescenti (Apostolic Letter) Leodiensis diœcesis (Apostolic Letter) Levate (Encyclical) Libertas præstantissimum (Encyclical) Libertatis conscientia (Instruction) Libertatis nuntius (Instruction) Licet ab initio (Apostolic Constitution) Licet Multa (Encyclical) Litteræ Encyclicæ (Apostolic Letter) Litteras a vobis (Encyclical) Litteris alto (Encyclical) Liturgia Horarum (Liturgical Book) Liturgia Horarum (Liturgical Book) Liturgiam authenticam (Instruction) Liturgicæ instaurationes (Instruction) Longinqua (Encyclical) Lucis æternæ (Apostolic Letter) Luctuosissimi eventus (Encyclical) Lumen caritatis (Letter) Lumen ecclesiæ (Apostolic Letter) Lumen Fidei (Encyclical) Lumen gentium (Conciliar Constitution) Lux veritatis (Encyclical) Magnæ dei Matris (Encyclical) Magnæ nobis (Encyclical) Magni nobis (Encyclical) Magnum matrimonii sacramentum (Apostolic Constitution) Magnum Principium (Motu Proprio) Maiora in Dies (Motu Proprio) Maiorem hac dilectionem (Motu Proprio) Mane nobiscum Domine (Apostolic Letter) Marialis Cultus (Apostolic Exhortation) Martyrologium Romanum (2004) (Liturgical Book) Martyrologium Romanum (2001) (Liturgical Book) Martyrologium Romanum (1913) (Liturgical Book) Martyrologium Romanum (1920) (Liturgical Book) Martyrologium Romanum (1924) (Liturgical Book) Martyrologium Romanum (1928) (Liturgical Book) Martyrologium Romanum (1948) (Liturgical Book) Martyrologium Romanum (1956) (Liturgical Book) Mater et Magistra (Encyclical) Matrimonia mixta (Motu Proprio) Matrimonii sacramentum (Instruction) Maximæ quidem (Encyclical) Maximæ quidem (Encyclical) Maximam gravissimamque (Encyclical) Maximo animi (Encyclical) Maximum illud (Apostolic Letter) Mediator Dei (Encyclical) Meditantibus Nobis (Apostolic Letter) Meminisse iuvat (Encyclical) Memoriale domini (Instruction) Mens Nostra (Encyclical) Mense maio (Encyclical) Menti nostræ (Apostolic Exhortation) Mentre milioni (Message) Meridionali Americæ (Encyclical) Militantis Ecclesiæ (Encyclical) Ministeria quædam (Motu Proprio) Ministrorum institutio (Motu Proprio) Mirabile illud (Encyclical) Mirabilis in Ecclesia Deus (Apostolic Letter) Miræ caritatis (Encyclical) Miranda prorsus (Encyclical) Mirari vos (Encyclical) Mirificus eventus (Apostolic Constitution) Miserentissimus Redemptor (Encyclical) Misericordia Dei (Motu Proprio) Misericordia et misera (Apostolic Letter) Misericordiæ Vultus (Bull) Missale Ambrosianum (Liturgical Book) Missale Romanum (Apostolic Constitution) Missale Romanum (2002) (Liturgical Book) Missale Romanum (1975) (Liturgical Book) Missale Romanum (1969) (Liturgical Book) Missale Romanum (1962) (Liturgical Book) Missale Romanum (1956) (Liturgical Book) Missale Romanum (1955) (Liturgical Book) Missale Romanum (1952) (Liturgical Book) Missale Romanum (1920) (Liturgical Book) Missale Romanum (1570) (Liturgical Book) Missale Romanum (2008) (Liturgical Book) Mitis et misericors Iesus (Motu Proprio) Mitis Iudex Dominus Iesus (Motu Proprio) Monasterii Sanctæ Mariæ (Apostolic Letter) Monasterium Speinshartense (Apostolic Letter) Mortalium animos (Encyclical) Mulieris dignitatem (Apostolic Letter) Multiformis Sapientia Dei (Apostolic Letter) Multiplices inter (Apostolic Letter) Multiplices inter (Encyclical) Multiplices inter (Encyclical) Multis gravibusque (Encyclical) Multis gravissimis (Encyclical) Munificentissimus Deus (Apostolic Constitution) Munus apostolicum (Motu Proprio) Munus Tribunalis (Motu Proprio) Musicæ sacræ (Encyclical) Musicam sacram (Instruction) Mutuæ relationes (Instruction) Mysterii paschalis (Motu Proprio) Mysterium Ecclesiæ (Declaration) Mysterium fidei (Encyclical) Mystici Corporis Christi (Encyclical) Ne temere (Declaration) Neminem vestrum (Encyclical) Nemo certe ignorat (Encyclical) Nimiam licentiam (Encyclical) Nobile subsidium liturgiæ (Letter) Nobilissima Gallorum gens (Encyclical) Nobilissimam sacrarum (Motu Proprio) Nobis in Animo (Apostolic Exhortation) Non mediocri (Encyclical) Non multo post (Motu Proprio) Non semel (Encyclical) Non sine animi (Letter) Non sine gravísimo (Encyclical) Normæ de promovendis ad Episcopatum in Ecclesia latina (Norms) Normas nonnullas (Motu Proprio) Norunt profecto (Motu Proprio) Nosti profecto (Apostolic Letter) Nostis et Nobiscum (Encyclical) Nostra ætate (Conciliar Declaration) Nova impendet (Encyclical) Novem per dies (Apostolic Exhortation) Novo incipiente (Letter) Novo millennio ineunte (Apostolic Letter) Novos et ante (Encyclical) Nulla celebrior (Bull) Nullius certe (Encyclical) Octobri mense (Encyclical) Octogesima adveniens (Apostolic Letter) Œconomicæ et pecuniariæ quæstiones (Document) Œcumenicum Concilium (Apostolic Letter) Officio sanctissimo (Encyclical) Officiorum omnium (Apostolic Letter) Omnem sollicitudinem (Encyclical) Omnes gentes plaudite manibus (Bull) Omnibus compertum (Encyclical) Omnium Ecclesiarum Matri (Apostolic Letter) Omnium in mentem (Motu Proprio) Opera artis (Circular Letter) Operosam diem (Apostolic Letter) Optatam totius (Conciliar Decree) Optatissima pax (Encyclical) Optime noscitis (Encyclical) Optime noscitis (Encyclical) Orationis formas (Curial Letter) Orbem catholicum (Motu Proprio) Ordinatio sacerdotalis (Apostolic Letter) Ordinem vestrum (Encyclical) Ordo baptismi parvulorum (2003) (Liturgical Book) Ordo baptismi parvulorum (1969) (Liturgical Book) Ordo baptismi parvulorum (1973) (Liturgical Book) Ordo Benedicendi Oleum catechumenorum et infirmorum et conficiendi chrisma (Liturgical Book) Ordo benedictionis Abbatis et Abbatissæ (Liturgical Book) Ordo benedictionis Abbatis et Abbatissæ (Liturgical Book) Ordo Cantus Missæ (1987) (Liturgical Book) Ordo Cantus 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