APA (7e ed.) Bronvermelding

Catholic Church. Pope (1878-1903 : Leo XIII) & Treacy, G. C. (1941). The chief duties of Christians as citizens. The Paulist Press.

Chicago (17e ed.) Bronvermelding

Catholic Church. Pope (1878-1903 : Leo XIII) en Gerald C. Treacy. The Chief Duties of Christians as Citizens. New York: The Paulist Press, 1941.

MLA (8e ed.) Bronvermelding

Catholic Church. Pope (1878-1903 : Leo XIII) en Gerald C. Treacy. The Chief Duties of Christians as Citizens. The Paulist Press, 1941.