APA ציטוט

Richard L Kohls & Richard L Kohls. (1961). Marketing of agricultureal products (2nd.). New York.

Chicago Edition Citation

Richard L Kohls and Richard L Kohls. Marketing of Agricultureal Products. 2nd. New York, 1961.

ציטוט MLA

Richard L Kohls and Richard L Kohls. Marketing of Agricultureal Products. 2nd. New York, 1961.