Treacy, G. C. (1939). Five Great Encyclicals. Labor - education - marriage - reconstructing the social order - atheistic communism. New York.
Chicago Style (17. basım) AtıfTreacy, Gerald C. Five Great Encyclicals. Labor - Education - Marriage - Reconstructing the Social Order - Atheistic Communism. New York, 1939.
MLA (8th ed.) AtıfTreacy, Gerald C. Five Great Encyclicals. Labor - Education - Marriage - Reconstructing the Social Order - Atheistic Communism. New York, 1939.
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