Guiltinan, J. P., & Paul, G. W. (1994). Marketing management: Strategies and programs (5th ed.). McGraw-Hill.

Guiltinan, Joseph P., and Gordon W. Paul. Marketing Management: Strategies and Programs. 5th ed. New York: McGraw-Hill, 1994.

Guiltinan, Joseph P., and Gordon W. Paul. Marketing Management: Strategies and Programs. 5th ed. McGraw-Hill, 1994.