SIEBERT, F. S. (1963). Four Theories Of The Press Fred S. Siebert, Theodore Peterson And Wilbur Schramm. University of Illinois Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSIEBERT, Fred S. Four Theories Of The Press Fred S. Siebert, Theodore Peterson And Wilbur Schramm. University of Illinois Press, 1963.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSIEBERT, Fred S. Four Theories Of The Press Fred S. Siebert, Theodore Peterson And Wilbur Schramm. University of Illinois Press, 1963.
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