Παραπομπή σε μορφή APA (7η εκδ.)

O'Connor, D. (1993). Ancient Nubia: Egypt's rival in Africa. The University Museum of Archaeology and Anthropology University of Pennsylvania.

Παραπομπή σε μορφή Chicago (17η εκδ.)

O'Connor, David. Ancient Nubia: Egypt's Rival in Africa. Pennsylvania, Philadelphia: The University Museum of Archaeology and Anthropology University of Pennsylvania, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

O'Connor, David. Ancient Nubia: Egypt's Rival in Africa. The University Museum of Archaeology and Anthropology University of Pennsylvania, 1993.