Cita APA (7a ed.)
Mutsaers, H., & Walker, P. (1990). Farmers maize yields in S.W. Nigeria and the effect of variety and fertilizer: An analysis of variability in onfarm trials. Elsevier.
Cita Chicago Style (17a ed.)
Mutsaers, H.J.W, y P. Walker. Farmers Maize Yields in S.W. Nigeria and the Effect of Variety and Fertilizer: An Analysis of Variability in Onfarm Trials. Elsevier, 1990.
Cita MLA (9a ed.)
Mutsaers, H.J.W, y P. Walker. Farmers Maize Yields in S.W. Nigeria and the Effect of Variety and Fertilizer: An Analysis of Variability in Onfarm Trials. Elsevier, 1990.
Precaución: Estas citas no son 100% exactas.