Cita APA (7th ed.)

Carlson, L. M. (2005). William J. Spillman and the birth of agricultural economics. University of Missouri Press.

Cita Chicago (17th ed.)

Carlson, Laurie M. William J. Spillman and the Birth of Agricultural Economics. Columbia: University of Missouri Press, 2005.

Cita MLA (9th ed.)

Carlson, Laurie M. William J. Spillman and the Birth of Agricultural Economics. University of Missouri Press, 2005.