Παραπομπή σε μορφή APA (7η εκδ.)

Leo XIII, P. (1951). Scholastic philosophy: Encyclical letter of Pope Leo XIII : Aeterni Patris / with discussion club outline by Rev. Gerald C. Treacy, S. J. New York.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Leo XIII, Pope. Scholastic Philosophy: Encyclical Letter of Pope Leo XIII : Aeterni Patris / with Discussion Club Outline by Rev. Gerald C. Treacy, S. J. New York, 1951.

Παραπομπή σε μορφή MLA (8th εκδ.)

Leo XIII, Pope. Scholastic Philosophy: Encyclical Letter of Pope Leo XIII : Aeterni Patris / with Discussion Club Outline by Rev. Gerald C. Treacy, S. J. New York, 1951.