Underhill, P. (2009). Why we Buy: The Science of Shopping. Simon & Schuster Paper Book.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnderhill, Paco. Why We Buy: The Science of Shopping. Simon & Schuster Paper Book, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnderhill, Paco. Why We Buy: The Science of Shopping. Simon & Schuster Paper Book, 2009.
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