Defleur, M. L., & Ballrokeach, S. (1975). Theories of mass communication (3rd ed.).
Chicago Edition CitationDefleur, Melvin L., i Sandra Ballrokeach. Theories of Mass Communication. 3rd ed. David Mckay Co, 1975.
Cita MLADefleur, Melvin L., i Sandra Ballrokeach. Theories of Mass Communication. 3rd ed. 1975.
Atenció: Aquestes cites poden no estar 100% correctes.