APA

Kohls R. L., Uhl J. N., . (1972). Marketing of agricultural products. New York: Manmillan Publishing.

Chicago

Kohls Richard L, Uhl Joseph N, . 1972. Marketing of agricultural products. New York: Manmillan Publishing.

Harvard

Kohls R. L., Uhl J. N., . (1972). Marketing of agricultural products. New York: Manmillan Publishing.

MLA

Kohls Richard L, Uhl Joseph N, . Marketing of agricultural products. New York: Manmillan Publishing. 1972.