APA (7th ed.) Citation

Hartmann, W. K. (1987). Astronomy the cosmic journey. Wadsworth Publishing.

Chicago Style (17th ed.) Citation

Hartmann, William K. Astronomy the Cosmic Journey. Wadsworth Publishing, 1987.

MLA (8th ed.) Citation

Hartmann, William K. Astronomy the Cosmic Journey. Wadsworth Publishing, 1987.

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