APA (7th ed.) Citation

Emmons, W. H. (1960). Geology: Principles and processes (5th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Emmons, William H. Geology: Principles and Processes. 5th ed. New York: McGraw-Hill, 1960.

MLA (9th ed.) Citation

Emmons, William H. Geology: Principles and Processes. 5th ed. McGraw-Hill, 1960.