APA (7th ed.) Citation

Zeilik, M. (1998). Introductory astronomy and astrophysics: Michael Zeilik and Stephen a. Gregory (4th ed.). Saunders College Publishing.

Chicago Style (17th ed.) Citation

Zeilik, Michael. Introductory Astronomy and Astrophysics: Michael Zeilik and Stephen a. Gregory. 4th ed. Fort Worth: Saunders College Publishing, 1998.

MLA (9th ed.) Citation

Zeilik, Michael. Introductory Astronomy and Astrophysics: Michael Zeilik and Stephen a. Gregory. 4th ed. Saunders College Publishing, 1998.

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