Dyfyniad APA

Kahls, R. L. (1967). Marketing of agricultural products (3rd ed.). Macmillan.

Dyfyniad Arddull Chicago

Kahls, Richard Louis. Marketing of Agricultural Products. 3rd ed. New York: Macmillan, 1967.

Dyfyniad MLA

Kahls, Richard Louis. Marketing of Agricultural Products. 3rd ed. Macmillan, 1967.

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