Gaya APA

O'Leary, T, J., O'Leary, L, I. (2013). Computing Essentials 2013 Introductionary . NEW YORK: McGraw Hill.

Gaya MLA

O'Leary, Timothy, J.., O'Leary, Linda, I.. "Computing Essentials 2013 Introductionary". NEW YORK: McGraw Hill, 2013. Text.