Zeff, R. L., & Aronson, B. (1997). Advertising on the Internet. Wiley.
Lua i Stíl Chicago (17ú heag.)Zeff, Robbin Lee, agus Brad Aronson. Advertising on the Internet. New York: Wiley, 1997.
Lua MLA (9ú heag.)Zeff, Robbin Lee, agus Brad Aronson. Advertising on the Internet. Wiley, 1997.
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