Cita APA (7a ed.)
Dixon, J. A., Hellin, J., Xiaoyun, L., & Hyman, G. G. (2009). Forty years of farming systems classification for enhanced food security and poverty reduction. CAB International.
Cita Chicago Style (17a ed.)
Dixon, John A., JJ Hellin, Li Xiaoyun, y Glenn G. Hyman. Forty Years of Farming Systems Classification for Enhanced Food Security and Poverty Reduction. CAB International, 2009.
Cita MLA (9a ed.)
Dixon, John A., et al. Forty Years of Farming Systems Classification for Enhanced Food Security and Poverty Reduction. CAB International, 2009.
Precaución: Estas citas no son 100% exactas.