APA Citation

Zeilik, M., & Gregory, S. A. (1998). Introductory astronomy & astrophysics (4. ed.). Belmont, Calf.: Brook/cole, Cengage Learning.

Chicago Style Citation

Zeilik, Michael, and Stephen A. Gregory. Introductory Astronomy & Astrophysics. 4. ed. Belmont, Calf.: Brook/cole, Cengage Learning, 1998.

MLA Citation

Zeilik, Michael, and Stephen A. Gregory. Introductory Astronomy & Astrophysics. 4. ed. Belmont, Calf.: Brook/cole, Cengage Learning, 1998.

Warning: These citations may not always be 100% accurate.