APA (7 वां संस्करण) प्रशस्ति पत्र
Hanna, R. C., Swain, S. D., & Smith, J. (2016). Email marketing in a digital world: The basics and beyond (First edition.). Business Expert Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hanna, Richard C., Scott D. Swain, और Jason Smith. Email Marketing in a Digital World: The Basics and Beyond. First edition. New York, New York (222 East 46th Street, New York, NY 10017): Business Expert Press, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hanna, Richard C., et al. Email Marketing in a Digital World: The Basics and Beyond. First edition. Business Expert Press, 2016.
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