Cita APA (7a ed.)
Alston, J. M., Pardey, P. G., & Smith, V. H. (1997). Paying for agricultural productivity. International Food Policy Research Institute.
Cita Chicago Style (17a ed.)
Alston, Julian M., Philip G. Pardey, y Vincent H. Smith. Paying for Agricultural Productivity. International Food Policy Research Institute, 1997.
Cita MLA (9a ed.)
Alston, Julian M., et al. Paying for Agricultural Productivity. International Food Policy Research Institute, 1997.
Precaución: Estas citas no son 100% exactas.