Smith, F. L. (1985). Perpectives on radio and television: Telecomunication in the United States (2ª ed.). Harper and Row.
Cita Chicago (17th ed.)Smith, F. Leslie. Perpectives on Radio and Television: Telecomunication in the United States. 2ª ed. Harper and Row, 1985.
Cita MLA (9th ed.)Smith, F. Leslie. Perpectives on Radio and Television: Telecomunication in the United States. 2ª ed. Harper and Row, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.