APA (7th ed.) Citation

Gregor, C. B. (1988). Chemical cycles in the evolution of the earth. Wiley.

Chicago Style (17th ed.) Citation

Gregor, C. Bryan. Chemical Cycles in the Evolution of the Earth. New York: Wiley, 1988.

MLA (9th ed.) Citation

Gregor, C. Bryan. Chemical Cycles in the Evolution of the Earth. Wiley, 1988.