Cita APA (7a ed.)

Cramer Gail C. (2001). Agricultural Economics (8th.). John Wiley & Sons Inc.

Cita Chicago Style (17a ed.)

Cramer Gail C. Agricultural Economics. 8th. New York: John Wiley & Sons Inc, 2001.

Cita MLA (9a ed.)

Cramer Gail C. Agricultural Economics. 8th. John Wiley & Sons Inc, 2001.