APA (7th ed.) Citation
Singh, B., Hartmann, P., Fatokun, C., Tamo, M., Tarawali, S. A., & Ortíz, R. (2003). Recent progress on cowpea improvement.
Chicago Style (17th ed.) Citation
Singh, B.B, P. Hartmann, C. Fatokun, Manuele Tamo, Shirley A. Tarawali, and R. Ortíz. Recent Progress on Cowpea Improvement. 2003.
MLA (9th ed.) Citation
Singh, B.B, et al. Recent Progress on Cowpea Improvement. 2003.
Warning: These citations may not always be 100% accurate.