APA (7th ed.) Citation

Pipkin, B. W., & Trent, D. D. (1997). Geology and the environment (2nd ed.). Wadsworth Publishing Co.

Chicago Style (17th ed.) Citation

Pipkin, Bernard W., and D. D. Trent. Geology and the Environment. 2nd ed. Belmont, California: Wadsworth Publishing Co, 1997.

MLA (9th ed.) Citation

Pipkin, Bernard W., and D. D. Trent. Geology and the Environment. 2nd ed. Wadsworth Publishing Co, 1997.