APA (7th ed.) Citation

Fix & John D. (1995). Astronomy: Journey to the Cosmic Frontier. Mosby-Year Book.

Chicago Style (17th ed.) Citation

Fix and John D. Astronomy: Journey to the Cosmic Frontier. St. Louis, MO: Mosby-Year Book, 1995.

MLA (9th ed.) Citation

Fix and John D. Astronomy: Journey to the Cosmic Frontier. Mosby-Year Book, 1995.