GREGORY, J. R. (1991). Marketing Corporate Image The Company As Your Number One Product. NTC Business Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGREGORY, James R. Marketing Corporate Image The Company As Your Number One Product. NTC Business Books, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGREGORY, James R. Marketing Corporate Image The Company As Your Number One Product. NTC Business Books, 1991.
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