Παραπομπή σε μορφή APA (7η εκδ.)

Morrison, D., Wolff, S. C., & Fraknoi, A. (1995). Abell's exploration of the universe (7th edition.). Saunders College Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Morrison, David, Sidney C. Wolff, και Andrew Fraknoi. Abell's Exploration of the Universe. 7th edition. Philadelphia: Saunders College Publishing, 1995.

Παραπομπή σε μορφή MLA (8th εκδ.)

Morrison, David, et al. Abell's Exploration of the Universe. 7th edition. Saunders College Publishing, 1995.