Reeder, R. R., Briert, E. G., Reeder, B. H., & Brierty, E. G. (1991). Industrial marketing: Analysis, planning, and control (2nd.). New Jersey: Prentice Hall.
Παραπομπή Chicago StyleReeder, Robert R., Edward G. Briert, Betty H. Reeder, and Edward G. Brierty. Industrial Marketing: Analysis, Planning, and Control. 2nd. New Jersey: Prentice Hall, 1991.
Παραπομπή MLAReeder, Robert R., Edward G. Briert, Betty H. Reeder, and Edward G. Brierty. Industrial Marketing: Analysis, Planning, and Control. 2nd. New Jersey: Prentice Hall, 1991.
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