APA (7th ed.) Citation

Hartmann, W. K. (1985). Astronomy, the cosmic journey (3rd ed.). Wadsworth Pub. Co..

Chicago Style (17th ed.) Citation

Hartmann, William K. Astronomy, the Cosmic Journey. 3rd ed. Belmont, Calif.: Wadsworth Pub. Co., 1985.

MLA (9th ed.) Citation

Hartmann, William K. Astronomy, the Cosmic Journey. 3rd ed. Wadsworth Pub. Co., 1985.