APA (7th ed.) Citation
Wortmann, C. S., Eledu, C. A., David, S., & Singh, S. P. (1999). Common bean as a cash earner in Sub-Saharan Africa.
Chicago Style (17th ed.) Citation
Wortmann, Charles S., Charles A. Eledu, Soniia David, and Shree P. Singh. Common Bean as a Cash Earner in Sub-Saharan Africa. 1999.
MLA (9th ed.) Citation
Wortmann, Charles S., et al. Common Bean as a Cash Earner in Sub-Saharan Africa. 1999.
Warning: These citations may not always be 100% accurate.