APA (7th ed.) Citation

Sawkins, F. J. (1978). The Evolving earth: A text in physical geology (2d ed.). Macmillan.

Chicago Style (17th ed.) Citation

Sawkins, Frederick J. The Evolving Earth: A Text in Physical Geology. 2d ed. New York: Macmillan, 1978.

MLA (9th ed.) Citation

Sawkins, Frederick J. The Evolving Earth: A Text in Physical Geology. 2d ed. Macmillan, 1978.