Cita APA (7a ed.)
Paarlberg, R. L. (1994). Sustainable Farming: A Political Geography. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Paarlberg, Robert L. Sustainable Farming: A Political Geography. International Food Policy Research Institute, 1994.
Cita MLA (9a ed.)
Paarlberg, Robert L. Sustainable Farming: A Political Geography. International Food Policy Research Institute, 1994.
Precaución: Estas citas no son 100% exactas.