HARDT, H. (1979). Social Theories Of The Press Early German & American Perspectives Hanno Hardt. Sage Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHARDT, Hanno. Social Theories Of The Press Early German & American Perspectives Hanno Hardt. Sage Publications, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHARDT, Hanno. Social Theories Of The Press Early German & American Perspectives Hanno Hardt. Sage Publications, 1979.
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