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.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.