Gamble, M., & Gamble, T. K. (1989). Introducing mass communication (2nd ed.). McGraw-Hill.

Gamble, Michael, and Teri Kwal Gamble. Introducing Mass Communication. 2nd ed. New York: McGraw-Hill, 1989.

Gamble, Michael, and Teri Kwal Gamble. Introducing Mass Communication. 2nd ed. McGraw-Hill, 1989.