Gaya APA

O'Leary, T, J., O'Leary, L, I. (2007). Computing essentials 2007 (complete e). New York: McGraw Hill - Irwin.

Gaya MLA

O'Leary, Timothy, J.., O'Leary, Linda, I.. "Computing essentials 2007". complete e New York: McGraw Hill - Irwin, 2007. Text.