Stanton, W. J., Etzel, M. J., & Walker, B. J. (1991). Fundamentals of marketing (9th ed.). McGraw-Hill.

Stanton, William J., Michael J. Etzel, and Bruce J. Walker. Fundamentals of Marketing. 9th ed. New York: McGraw-Hill, 1991.

Stanton, William J., et al. Fundamentals of Marketing. 9th ed. McGraw-Hill, 1991.