Cita APA (7a ed.)
Yusuf, A., Iwuafor, E., Abaidoo, R. C., Olufajo, O., & Sanginga, N. (2007). Grain legume rotation benefits to maize in the northern Guinea savanna of Nigeria: Fixed-nitrogen vs other rotation effects. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Yusuf, A.A, E.N.O Iwuafor, Robert C. Abaidoo, O.O Olufajo, y Nteranya Sanginga. Grain Legume Rotation Benefits to Maize in the Northern Guinea Savanna of Nigeria: Fixed-nitrogen Vs Other Rotation Effects. International Center for Tropical Agriculture, 2007.
Cita MLA (9a ed.)
Yusuf, A.A, et al. Grain Legume Rotation Benefits to Maize in the Northern Guinea Savanna of Nigeria: Fixed-nitrogen Vs Other Rotation Effects. International Center for Tropical Agriculture, 2007.
Precaución: Estas citas no son 100% exactas.