Cita APA (7a ed.)

Kohls, R. (1967). Marketing of agricultural products (3rd edition.). Mac-Millan.

Cita Chicago Style (17a ed.)

Kohls, R.L. Marketing of Agricultural Products. 3rd edition. New York: Mac-Millan, 1967.

Cita MLA (8a ed.)

Kohls, R.L. Marketing of Agricultural Products. 3rd edition. Mac-Millan, 1967.