Catholic Church. (1944). Supplementum ad Breviarium Romano-seraphicum: Continens omnia officia noviter approbata e locis authenticis extracta, in commodum trium ordinum S.P.N. Francisci specialiter in America Septentrionali. Typographia Societatis Sancti Antonii.
Chicago Style (17th ed.) CitationCatholic Church. Supplementum Ad Breviarium Romano-seraphicum: Continens Omnia Officia Noviter Approbata E Locis Authenticis Extracta, in Commodum Trium Ordinum S.P.N. Francisci Specialiter in America Septentrionali. Patersonii: Typographia Societatis Sancti Antonii, 1944.
MLA (8th ed.) CitationCatholic Church. Supplementum Ad Breviarium Romano-seraphicum: Continens Omnia Officia Noviter Approbata E Locis Authenticis Extracta, in Commodum Trium Ordinum S.P.N. Francisci Specialiter in America Septentrionali. Typographia Societatis Sancti Antonii, 1944.