Citazione APA

Stempel, G. H., & Westley, B. H. (1989). Research methods in mass communication (2nd ed.). Prentice Hall.

Stile di citazione Chicago

Stempel, Guido Hermann, e Bruce H. Westley. Research Methods in Mass Communication. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall, 1989.

Citazione MLA

Stempel, Guido Hermann, e Bruce H. Westley. Research Methods in Mass Communication. 2nd ed. Prentice Hall, 1989.