Παραπομπή σε μορφή APA (7η εκδ.)

O'Connor, H. (1937). The Guggenheims: The making of an American dynasty / by Harvey O'Connor. Covici, Friede.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Connor, Harvey. The Guggenheims: The Making of an American Dynasty / by Harvey O'Connor. New York: Covici, Friede, 1937.

Παραπομπή σε μορφή MLA (8th εκδ.)

O'Connor, Harvey. The Guggenheims: The Making of an American Dynasty / by Harvey O'Connor. Covici, Friede, 1937.