Gaya APA

J, O, T., I, O, L. (2012). Computing essentials 2012 : making IT work for you . New York: McGraw-Hill.

Gaya MLA

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