Hall, R. W. (1991). Media math: Basic techniques of evaluation (2nd ed.). NTC Business Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHall, Robert W. Media Math: Basic Techniques of Evaluation. 2nd ed. Lincolnwood, Ill: NTC Business Books, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHall, Robert W. Media Math: Basic Techniques of Evaluation. 2nd ed. NTC Business Books, 1991.
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