Cita APA

Evenson, R. E. 1. (1997). Extension, technology, and efficiency in agriculture in Sub-Saharan Africa. New Haven, Connecticut: Yale University.

Citación estilo Chicago

Evenson, Robert Eugene 1934-2013. Extension, Technology, and Efficiency in Agriculture in Sub-Saharan Africa. New Haven, Connecticut: Yale University, 1997.

Cita MLA

Evenson, Robert Eugene 1934-2013. Extension, Technology, and Efficiency in Agriculture in Sub-Saharan Africa. New Haven, Connecticut: Yale University, 1997.