Hallett, G. (1968). The Economics of agricultural policy (1st edition.). Augustus M. Kelley.
Cita Chicago Style (17a ed.)Hallett, Graham. The Economics of Agricultural Policy. 1st edition. New York: Augustus M. Kelley, 1968.
Cita MLA (8a ed.)Hallett, Graham. The Economics of Agricultural Policy. 1st edition. Augustus M. Kelley, 1968.
Precaución: Estas citas no son 100% exactas.