APA (7th ed.) Citation

Hartman, W. K. (1985). Astronomy the cosmic journey. Wadsworth Publ.

Chicago Style (17th ed.) Citation

Hartman, William K. Astronomy the Cosmic Journey. Wadsworth Publ, 1985.

MLA (8th ed.) Citation

Hartman, William K. Astronomy the Cosmic Journey. Wadsworth Publ, 1985.

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