Kohls, Richard L.
Marketing of agricultural products / Richard L. Kohls
Macmillan, 1971
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Kohls, Richard L.
Marketing of agricultural products Richard l. Kohls and W. David Downey
New York, N.Y. Macmillan c.1972,
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Larson, Adlowe L.
Agricultural marketing /Adlowe L. Larson
Prentice-Hall, 1957
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Clark, Fred E.
Marketing agricultural products in the United States
Macmillan, 1933
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The marketing of industrial products
edited by Norman Hart
McGraw-Hill, 1984
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