Catholic Church. Pope (1878-1903 : Leo XIII) & Treacy, G. C. (1941). The chief duties of Christians as citizens. The Paulist Press.
Cita Chicago Style (17a ed.)Catholic Church. Pope (1878-1903 : Leo XIII) y Gerald C. Treacy. The Chief Duties of Christians as Citizens. New York: The Paulist Press, 1941.
Cita MLA (8a ed.)Catholic Church. Pope (1878-1903 : Leo XIII) y Gerald C. Treacy. The Chief Duties of Christians as Citizens. The Paulist Press, 1941.
Precaución: Estas citas no son 100% exactas.