Richard Darlene D. (2002). Customer Response Management Handbook: Building, rebuilding and improving your results. Tata McGraw Hill Publishing com Ptd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRichard Darlene D. Customer Response Management Handbook: Building, Rebuilding and Improving Your Results. New Dehli, India: Tata McGraw Hill Publishing com Ptd, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRichard Darlene D. Customer Response Management Handbook: Building, Rebuilding and Improving Your Results. Tata McGraw Hill Publishing com Ptd, 2002.
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