(1965). Modern Business: Public Relations / Irving Smith Kogan. Alexander Hamilton Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रModern Business: Public Relations / Irving Smith Kogan. Alexander Hamilton Institute, 1965.
एमएलए (8वां संस्करण) प्रशस्ति पत्रModern Business: Public Relations / Irving Smith Kogan. Alexander Hamilton Institute, 1965.
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