Hall, R. W. (1987). Media math: Basic techniques of media evaluation. NTC Business Books.
Cita Chicago Style (17a ed.)Hall, Robert W. Media Math: Basic Techniques of Media Evaluation. Lincolnwood, Ill: NTC Business Books, 1987.
Cita MLA (9a ed.)Hall, Robert W. Media Math: Basic Techniques of Media Evaluation. NTC Business Books, 1987.
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