APA (7e ed.) Bronvermelding

Kohls, R. (2002). Marketing of agricultura; products (9th.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Kohls, Rochard. Marketing of Agricultura; Products. 9th. New Delhi: Prentice Hall, 2002.

MLA (9e ed.) Bronvermelding

Kohls, Rochard. Marketing of Agricultura; Products. 9th. Prentice Hall, 2002.

Let op: Deze citaties zijn niet altijd 100% accuraat.