Gaya APA

Kohls, R, L., Downey, W, D. (1972). Marketing Of Agricultural Products (Ed. 4). New York: The Macmillian Company.

Gaya MLA

Kohls, Richard, L.., Downey, W., David. "Marketing Of Agricultural Products". Ed. 4 New York: The Macmillian Company, 1972. Text.