Stern, L. W., Ansary, A. I., & Coughlan, A. T. (1996). Marketing channels (5th ed.). Prentice Hall.

Stern, Louis W., Adel I. Ansary, and Anne T. Coughlan. Marketing Channels. 5th ed. Upper Saddle River, NJ ; New Delhi,: Prentice Hall, 1996.

Stern, Louis W., et al. Marketing Channels. 5th ed. Prentice Hall, 1996.