APA (7th ed.) Citation
Olufajo, O., & Singh, B. (2002). Advances in cowpea cropping systems research.
Chicago Style (17th ed.) Citation
Olufajo, O.O, and B.B Singh. Advances in Cowpea Cropping Systems Research. 2002.
MLA (9th ed.) Citation
Olufajo, O.O, and B.B Singh. Advances in Cowpea Cropping Systems Research. 2002.
Warning: These citations may not always be 100% accurate.