Shelly, G. B., & Vermaat, M. (2008). Discovering computers 2009: Complete. Course Technology, Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Shelly, Gary B., agus Misty Vermaat. Discovering Computers 2009: Complete. Boston, Mass: Course Technology, Cengage Learning, 2008.
Lua MLA (9ú heag.)Shelly, Gary B., agus Misty Vermaat. Discovering Computers 2009: Complete. Course Technology, Cengage Learning, 2008.
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