Cita APA (7a ed.)

Abell, G. O., Morrison, D., & Wolff, S. C. (1996). Exploration of the Universe. Saunders College Publishing.

Cita Chicago Style (17a ed.)

Abell, George O., David Morrison, y Sidney C. Wolff. Exploration of the Universe. Philadelphia: Saunders College Publishing, 1996.

Cita MLA (9a ed.)

Abell, George O., et al. Exploration of the Universe. Saunders College Publishing, 1996.