Carlson, L. M. (2005). William J. Spillman and the birth of agricultural economics. University of Missouri Press.
Cita Chicago Style (17a ed.)Carlson, Laurie M. William J. Spillman and the Birth of Agricultural Economics. Columbia: University of Missouri Press, 2005.
Cita MLA (9a ed.)Carlson, Laurie M. William J. Spillman and the Birth of Agricultural Economics. University of Missouri Press, 2005.
Precaución: Estas citas no son 100% exactas.