Schramm, W. L. 1. e., & Roberts, D. F. j. e. (1971). The process and effects of mass communication (Rev. ed.). University of Illinios Press.
Cita Chicago (17th ed.)Schramm, Wilbur Lang 1907- ed, i Donald F. joint ed Roberts. The Process and Effects of Mass Communication. Rev. ed. Urbana: University of Illinios Press, 1971.
Cita MLA (9th ed.)Schramm, Wilbur Lang 1907- ed, i Donald F. joint ed Roberts. The Process and Effects of Mass Communication. Rev. ed. University of Illinios Press, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.