Ries, A. (2002). Fall of advertising and the rise of PR (NA.). Harper Collins.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRies, Al. Fall of Advertising and the Rise of PR. NA. New York: Harper Collins, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRies, Al. Fall of Advertising and the Rise of PR. NA. Harper Collins, 2002.
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