APA (7th ed.) Citation

Hartmann, W. K. (1978). Astronomy: The cosmic journey. Wadsworth.

Chicago Style (17th ed.) Citation

Hartmann, William K. Astronomy: The Cosmic Journey. Wadsworth, 1978.

MLA (8th ed.) Citation

Hartmann, William K. Astronomy: The Cosmic Journey. Wadsworth, 1978.

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