APA (7th ed.) Citation
Okogun, J., Sanginga, P., & Mulongoy, N. (2000). Nitrogen contribution of five leguminous trees and shrubs to alley cropped maize.
Chicago Style (17th ed.) Citation
Okogun, J., P. Sanginga, and N. Mulongoy. Nitrogen Contribution of Five Leguminous Trees and Shrubs to Alley Cropped Maize. 2000.
MLA (9th ed.) Citation
Okogun, J., et al. Nitrogen Contribution of Five Leguminous Trees and Shrubs to Alley Cropped Maize. 2000.
Warning: These citations may not always be 100% accurate.