Style de citation APA (7e éd.)

Ikerd, J. E. (2008). Crisis and Opportunity: Sustainability in American Agriculture. University of Nebraska Press.

Style de citation Chicago (17e éd.)

Ikerd, John E. Crisis and Opportunity: Sustainability in American Agriculture. Lincoln: University of Nebraska Press, 2008.

Style de citation MLA (8e éd.)

Ikerd, John E. Crisis and Opportunity: Sustainability in American Agriculture. University of Nebraska Press, 2008.