Treacy, G. C. (1939). Five Great Encyclicals. Labor - education - marriage - reconstructing the social order - atheistic communism. New York.
Citação do estilo Chicago (17ª ed.)Treacy, Gerald C. Five Great Encyclicals. Labor - Education - Marriage - Reconstructing the Social Order - Atheistic Communism. New York, 1939.
Citação MLA (8ª ed.)Treacy, Gerald C. Five Great Encyclicals. Labor - Education - Marriage - Reconstructing the Social Order - Atheistic Communism. New York, 1939.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.