APA (7th ed.) Citation

Abell, G. O., Morrison, D., & Wolff, S. C. (1992). Realm of the universe (5th edition.). Saunders College Publishing.

Chicago Style (17th ed.) Citation

Abell, George O., David Morrison, and Sidney C. Wolff. Realm of the Universe. 5th edition. Philadelphia: Saunders College Publishing, 1992.

MLA (8th ed.) Citation

Abell, George O., et al. Realm of the Universe. 5th edition. Saunders College Publishing, 1992.