Cita APA (7a ed.)
Sahn, D. E. (1989). Seasonal variability in Third World agriculture. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Sahn, David E. Seasonal Variability in Third World Agriculture. International Food Policy Research Institute, 1989.
Cita MLA (9a ed.)
Sahn, David E. Seasonal Variability in Third World Agriculture. International Food Policy Research Institute, 1989.
Precaución: Estas citas no son 100% exactas.