Cita APA (7a ed.)
Ojiako, I., Manyong, V. M., & Ikpi, A. (2008). Smallholder soybean farmers supply response in northern Nigeria.
Cita Chicago Style (17a ed.)
Ojiako, I.A, Victor M. Manyong, y A. Ikpi. Smallholder Soybean Farmers Supply Response in Northern Nigeria. 2008.
Cita MLA (9a ed.)
Ojiako, I.A, et al. Smallholder Soybean Farmers Supply Response in Northern Nigeria. 2008.
Precaución: Estas citas no son 100% exactas.