Smith, J. (2000). Successful customer retention in a week. Hodder & Stoughton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmith, Jane. Successful Customer Retention in a Week. London: Hodder & Stoughton, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSmith, Jane. Successful Customer Retention in a Week. Hodder & Stoughton, 2000.
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