Cita APA (7a ed.)
Beed, F. D., & Menkir, A. (2013). Maize based croping systems. International Society for Tropical Root Crops.
Cita Chicago Style (17a ed.)
Beed, Fenton D., y A. Menkir. Maize Based Croping Systems. International Society for Tropical Root Crops, 2013.
Cita MLA (9a ed.)
Beed, Fenton D., y A. Menkir. Maize Based Croping Systems. International Society for Tropical Root Crops, 2013.
Precaución: Estas citas no son 100% exactas.