O’Leary, T. J., & O’Leary. Computing essentials 2008 (Complete ed., 19th.). McGraw-Hill/Irwin.
Lua i Stíl Chicago (17ú heag.)O’Leary, Timothy J., agus O’Leary. Computing Essentials 2008. Complete ed., 19th. New York, NY: McGraw-Hill/Irwin.
Lua MLA (9ú heag.)O’Leary, Timothy J., agus O’Leary. Computing Essentials 2008. Complete ed., 19th. McGraw-Hill/Irwin.
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