Cita APA (7a ed.)

Boyce, J. K., & Evenson, R. E. (1975). Agricultural research and extension programs. Agricultural Development Council.

Cita Chicago Style (17a ed.)

Boyce, James K., y Robert E. Evenson. Agricultural Research and Extension Programs. New York: Agricultural Development Council, 1975.

Cita MLA (8a ed.)

Boyce, James K., y Robert E. Evenson. Agricultural Research and Extension Programs. Agricultural Development Council, 1975.