Leo XIII, P. (1944). Humanum Genus: Encyclical Letter of Our Holy Father...Pope Leo XIII on freemasonry with discussion club outline, by Gerald C. Treacy. New York.
Čikaški stil citiranja (17. izdanje)Leo XIII, Pope. Humanum Genus: Encyclical Letter of Our Holy Father...Pope Leo XIII on Freemasonry with Discussion Club Outline, by Gerald C. Treacy. New York, 1944.
MLA način citiranja (8. izdanje)Leo XIII, Pope. Humanum Genus: Encyclical Letter of Our Holy Father...Pope Leo XIII on Freemasonry with Discussion Club Outline, by Gerald C. Treacy. New York, 1944.
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