Cita APA (7a ed.)
Penson, J. B. (2015). Introduction to agricultural economics (6th ed.). Pearson.
Cita Chicago Style (17a ed.)
Penson, John B. Introduction to Agricultural Economics. 6th ed. Boston: Pearson, 2015.
Cita MLA (9a ed.)
Penson, John B. Introduction to Agricultural Economics. 6th ed. Pearson, 2015.
Precaución: Estas citas no son 100% exactas.