Citazione APA

Kohls, R. L. (1967). Marketing of agricultural products (3.). The macmillan co.

Stile di citazione Chicago

Kohls, Richard L. Marketing of Agricultural Products. 3. New York: The macmillan co, 1967.

Citazione MLA

Kohls, Richard L. Marketing of Agricultural Products. 3. The macmillan co, 1967.