Hester, E. L. (1996). Successful marketing research: The complete guide to getting and using essential information about your customers and competitors. Wiley.

Hester, Edward L. Successful Marketing Research: The Complete Guide to Getting and Using Essential Information About Your Customers and Competitors. New York: Wiley, 1996.

Hester, Edward L. Successful Marketing Research: The Complete Guide to Getting and Using Essential Information About Your Customers and Competitors. Wiley, 1996.