APA (7th ed.) Citation

Keller, E. A. (1976). Environmental geology. Charles E Merrill.

Chicago Style (17th ed.) Citation

Keller, Edward A. Environmental Geology. Charles E Merrill, 1976.

MLA (8th ed.) Citation

Keller, Edward A. Environmental Geology. Charles E Merrill, 1976.

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