APA (7th ed.) Citation

Pimentel, G. C., & Spratley, R. D. (1971). Understanding chemistry. Holden-Day.

Chicago Style (17th ed.) Citation

Pimentel, George C., and Richard D. Spratley. Understanding Chemistry. San Francisco: Holden-Day, 1971.

MLA (9th ed.) Citation

Pimentel, George C., and Richard D. Spratley. Understanding Chemistry. Holden-Day, 1971.