Gaya APA

O'Leary, T, J., O'Leary, L, I. (2013). Computing Essentials 2013 : Introductory . New York: Mc Graw- Hill Book Co.

Gaya MLA

O'Leary, Timothy, J.., O'Leary, Linda, I. "Computing Essentials 2013 : Introductory". New York: Mc Graw- Hill Book Co, 2013. Text.