Lefebvre, C. (1972). De motu proprio 'Causas matrimoniales'. Animadversiones quaedam. Periodica de re morali canonica liturgica, 61, 395-422.
Chicago Style (17th ed.) CitationLefebvre, Charles. "De Motu Proprio 'Causas Matrimoniales'. Animadversiones Quaedam." Periodica De Re Morali Canonica Liturgica 61 (1972): 395-422.
MLA (8th ed.) CitationLefebvre, Charles. "De Motu Proprio 'Causas Matrimoniales'. Animadversiones Quaedam." Periodica De Re Morali Canonica Liturgica, vol. 61, 1972, pp. 395-422.
Warning: These citations may not always be 100% accurate.