Παραπομπή σε μορφή APA (7η εκδ.)

O'Brien, I. (1943). The Third Order of Saint Francis: Instrument of peace. National Secretary of the Third Order.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Brien, Isidore. The Third Order of Saint Francis: Instrument of Peace. St. Louis, Mo.: National Secretary of the Third Order, 1943.

Παραπομπή σε μορφή MLA (8th εκδ.)

O'Brien, Isidore. The Third Order of Saint Francis: Instrument of Peace. National Secretary of the Third Order, 1943.