APA (7th ed.) Citation

Coyle, E. D., & Simmons, R. A. (2014). Understanding the Global Energy Crisis. Purdue University Press.

Chicago Style (17th ed.) Citation

Coyle, Eugene D., and Richard A. Simmons. Understanding the Global Energy Crisis. West Lafayette: Purdue University Press, 2014.

MLA (9th ed.) Citation

Coyle, Eugene D., and Richard A. Simmons. Understanding the Global Energy Crisis. Purdue University Press, 2014.