Chaffee H. Steven & Petrick J. Michael. (1975). Using the Mass Media: Communication Problems in American Society. Mc Graw Hill.
Cita Chicago (17th ed.)Chaffee H. Steven i Petrick J. Michael. Using the Mass Media: Communication Problems in American Society. New York: Mc Graw Hill, 1975.
Cita MLA (9th ed.)Chaffee H. Steven i Petrick J. Michael. Using the Mass Media: Communication Problems in American Society. Mc Graw Hill, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.