Gaya APA

O'Leary, T, J., O'Leary, L, I. (2012). Computing essentials: making IT work for you introductory 2012 . New York: McGraw Hill.

Gaya MLA

O'Leary, Timothy, J.., O'Leary, Linda, I.. "Computing essentials: making IT work for you introductory 2012". New York: McGraw Hill, 2012. Text.