Schlöenvoigt, A., Kass, D., Jiménez Otárola, F., Siles Calvo, J., & Chesney, P. E. (1999). Perspectives for organic crop production in the tropics (Número de registro.
Citación estilo ChicagoSchlöenvoigt, Andrea, Donald Kass, Francisco Jiménez Otárola, Jackeline Siles Calvo, y Patrick E. Chesney. Perspectives for Organic Crop Production in the Tropics (Número De Registro. 1999.
MLA引文Schlöenvoigt, Andrea, et al. Perspectives for Organic Crop Production in the Tropics (Número De Registro. 1999.
警告:這些引文格式不一定是100%准確.