Citação norma APA

Catholic Church. Pope (1878-1903 : Leo XIII) & Treacy, G. C. (1941). Christian democracy: Encyclical letter of Pope Leo XIII. Graves de communi. The Paulist Press.

Citação norma Chicago

Catholic Church. Pope (1878-1903 : Leo XIII) and Gerald C. Treacy. Christian Democracy: Encyclical Letter of Pope Leo XIII. Graves De Communi. New York: The Paulist Press, 1941.

Citação norma MLA

Catholic Church. Pope (1878-1903 : Leo XIII) and Gerald C. Treacy. Christian Democracy: Encyclical Letter of Pope Leo XIII. Graves De Communi. The Paulist Press, 1941.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.