Kohls, R. L. (1967). Marketing of Agricultural products (3rd ed.). Collier- Macmillan.
Chicagoスタイル(17版)引用形式Kohls, Richard L. Marketing of Agricultural Products. 3rd ed. London: Collier- Macmillan, 1967.
MLA(9版)引用形式Kohls, Richard L. Marketing of Agricultural Products. 3rd ed. Collier- Macmillan, 1967.
警告: この引用は必ずしも正確ではありません.