Cita APA (7a ed.)
Powell, J., Fernández Rivera, S., & Williams, T. O. (1995). Research for improving cereal-based livestock systems in semi-arid sub-Saharan Africa. International Rice Research Institute.
Cita Chicago Style (17a ed.)
Powell, J.M, S. Fernández Rivera, y Timothy O. Williams. Research for Improving Cereal-based Livestock Systems in Semi-arid Sub-Saharan Africa. International Rice Research Institute, 1995.
Cita MLA (9a ed.)
Powell, J.M, et al. Research for Improving Cereal-based Livestock Systems in Semi-arid Sub-Saharan Africa. International Rice Research Institute, 1995.
Precaución: Estas citas no son 100% exactas.