Westley Bruce. (1989). Research methods in mass communication (2nd ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Westley Bruce. Research Methods in Mass Communication. 2nd ed. New York: Prentice-Hall, 1989.
Cita MLA (9a ed.)Westley Bruce. Research Methods in Mass Communication. 2nd ed. Prentice-Hall, 1989.
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