Catholic Church. (1487). Incipit officium beate Marie virginis secundu[m] co[n]suetudine[m] Romane curie.
Chicago Style (17th ed.) CitationCatholic Church. Incipit Officium Beate Marie Virginis Secundu[m] Co[n]suetudine[m] Romane Curie. 1487.
MLA (8th ed.) CitationCatholic Church. Incipit Officium Beate Marie Virginis Secundu[m] Co[n]suetudine[m] Romane Curie. 1487.
Warning: These citations may not always be 100% accurate.