Gaya APA

O\'LEARY, T, J., O\'LEARY, L, I. (2013). Computing Essentials 2013 : Making IT work for you . New York: McGraw-Hill.

Gaya MLA

O\'LEARY, Timothy, J.., O\'LEARY, Linda, I. "Computing Essentials 2013 : Making IT work for you". New York: McGraw-Hill, 2013. Text.