APA (7th ed.) Citation
Sheehy, J., Dionora, M., Mitchell, P., Peng, S., Cassman, K., Lemaire, G., & Williams, R. (1998). Critical nitrogen concentrations: Implications for high-yielding rice (Oryza sativa L.) cultivars in the tropics. Elsevier.
Chicago Style (17th ed.) Citation
Sheehy, J.E, M.J.A Dionora, P.L Mitchell, S. Peng, K.G Cassman, G. Lemaire, and R.L Williams. Critical Nitrogen Concentrations: Implications for High-yielding Rice (Oryza Sativa L.) Cultivars in the Tropics. Elsevier, 1998.
MLA (9th ed.) Citation
Sheehy, J.E, et al. Critical Nitrogen Concentrations: Implications for High-yielding Rice (Oryza Sativa L.) Cultivars in the Tropics. Elsevier, 1998.
Warning: These citations may not always be 100% accurate.