Cita APA (7a ed.)
Powell, J., Fernández Rivera, S., & Hofs, S. (1994). Effects of sheep diet on nutrient cycling in mixed farming systems of semi-arid West Africa. Elsevier.
Cita Chicago Style (17a ed.)
Powell, J.M, S. Fernández Rivera, y S. Hofs. Effects of Sheep Diet on Nutrient Cycling in Mixed Farming Systems of Semi-arid West Africa. Elsevier, 1994.
Cita MLA (9a ed.)
Powell, J.M, et al. Effects of Sheep Diet on Nutrient Cycling in Mixed Farming Systems of Semi-arid West Africa. Elsevier, 1994.
Precaución: Estas citas no son 100% exactas.