Cita APA

Evenson, R. E. 1. (1997). Two blades of grass: Research for U.S. agriculture. New Haven, Connecticut: Yale University.

Citación estilo Chicago

Evenson, Robert Eugene 1934-2013. Two Blades of Grass: Research for U.S. Agriculture. New Haven, Connecticut: Yale University, 1997.

Cita MLA

Evenson, Robert Eugene 1934-2013. Two Blades of Grass: Research for U.S. Agriculture. New Haven, Connecticut: Yale University, 1997.