APA-referens (7:e uppl.)
Coyle, E. D., & Simmons, R. A. (2014). Understanding the global energy crisis. Published on behalf of the Global Policy Research Institute by Purdue University Press.
Chicago-referens (17:e uppl.)
Coyle, Eugene D., och Richard A. Simmons. Understanding the Global Energy Crisis. West Lafayette, Indiana: Published on behalf of the Global Policy Research Institute by Purdue University Press, 2014.
MLA-referens (9:e uppl.)
Coyle, Eugene D., och Richard A. Simmons. Understanding the Global Energy Crisis. Published on behalf of the Global Policy Research Institute by Purdue University Press, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.