Brondmo, H. P. (2000). The eng@ged customer: The new rules of Internet direct marketing. HarperBusiness.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBrondmo, Hans Peter. The Eng@ged Customer: The New Rules of Internet Direct Marketing. New York: HarperBusiness, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBrondmo, Hans Peter. The Eng@ged Customer: The New Rules of Internet Direct Marketing. HarperBusiness, 2000.
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