O'LEARY, T. J., & O'LEARY, L. I. (2013). Computing essentials 2013 introductory. McGraw-Hill Book Company.
Lua i Stíl Chicago (17ú heag.)O'LEARY, Timothy J., agus Linda I. O'LEARY. Computing Essentials 2013 Introductory. McGraw-Hill Book Company, 2013.
Lua MLA (9ú heag.)O'LEARY, Timothy J., agus Linda I. O'LEARY. Computing Essentials 2013 Introductory. McGraw-Hill Book Company, 2013.
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