Cita APA (7a ed.)
Carsky, R., Singh, B., & Oyewole, B. (2001). Contribution of early season cowpea to late season maize in the savanna zone of West Africa. Informa UK Limited.
Cita Chicago Style (17a ed.)
Carsky, R.J, B.B Singh, y B. Oyewole. Contribution of Early Season Cowpea to Late Season Maize in the Savanna Zone of West Africa. Informa UK Limited, 2001.
Cita MLA (9a ed.)
Carsky, R.J, et al. Contribution of Early Season Cowpea to Late Season Maize in the Savanna Zone of West Africa. Informa UK Limited, 2001.
Precaución: Estas citas no son 100% exactas.