Zimmer, A. (1966). The strategy of successful retail salesmanship. Mc Graw Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZimmer, Allen. The Strategy of Successful Retail Salesmanship. New York: Mc Graw Hill, 1966.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZimmer, Allen. The Strategy of Successful Retail Salesmanship. Mc Graw Hill, 1966.
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