APA (7th ed.) Citation

Perkins, J. H. (1997). Geopolitics and the green revolution: Wheat, genes, and the cold war. Oxford University Press.

Chicago Style (17th ed.) Citation

Perkins, John H. Geopolitics and the Green Revolution: Wheat, Genes, and the Cold War. New York: Oxford University Press, 1997.

MLA (9th ed.) Citation

Perkins, John H. Geopolitics and the Green Revolution: Wheat, Genes, and the Cold War. Oxford University Press, 1997.