Cita APA (7a ed.)
Powell, J., Fernández Rivera, S., Hiernaux, P. H., & Turner, M. (1996). Nutrient cycling in integrated rangeland/cropland systems of the Sahel. Elsevier.
Cita Chicago Style (17a ed.)
Powell, J.M, S. Fernández Rivera, Pierre H.Y Hiernaux, y M.D Turner. Nutrient Cycling in Integrated Rangeland/cropland Systems of the Sahel. Elsevier, 1996.
Cita MLA (9a ed.)
Powell, J.M, et al. Nutrient Cycling in Integrated Rangeland/cropland Systems of the Sahel. Elsevier, 1996.
Precaución: Estas citas no son 100% exactas.