APA (7th ed.) Citation

Robbins, R. R., Jefferys, W. H., & Shawl, S. J. (1995). Discovering astronomy (3. ed.). Wiley.

Chicago Style (17th ed.) Citation

Robbins, Ralph Robert, William H. Jefferys, and Stephen J. Shawl. Discovering Astronomy. 3. ed. New York u.a: Wiley, 1995.

MLA (9th ed.) Citation

Robbins, Ralph Robert, et al. Discovering Astronomy. 3. ed. Wiley, 1995.