APA (7th ed.) Citation

Keller, E. A. (1992). Environmental geology. Macmillan.

Chicago Style (17th ed.) Citation

Keller, Edward A. Environmental Geology. Macmillan, 1992.

MLA (8th ed.) Citation

Keller, Edward A. Environmental Geology. Macmillan, 1992.

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