Cita APA (7a ed.)
Wortmann, C. S., Eledu, C. A., David, S., & Singh, S. P. (1999). Common bean as a cash earner in Sub-Saharan Africa.
Cita Chicago Style (17a ed.)
Wortmann, Charles S., Charles A. Eledu, Soniia David, y Shree P. Singh. Common Bean as a Cash Earner in Sub-Saharan Africa. 1999.
Cita MLA (9a ed.)
Wortmann, Charles S., et al. Common Bean as a Cash Earner in Sub-Saharan Africa. 1999.
Precaución: Estas citas no son 100% exactas.