Shelly, G. B., Cashman, T. J., & Vermaat, M. E. (2007). Discovering computers 2007: A gateway to information web enhanced. Thomson/Course Technology.
Lua i Stíl Chicago (17ú heag.)Shelly, Gary B., Thomas J. Cashman, agus Misty E. Vermaat. Discovering Computers 2007: A Gateway to Information Web Enhanced. Thomson/Course Technology, 2007.
Lua MLA (8ú heag.)Shelly, Gary B., et al. Discovering Computers 2007: A Gateway to Information Web Enhanced. Thomson/Course Technology, 2007.
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