Gaya APA

J.O'Leary, T., O'Leary, L, I. (2012). Computing essentials 2012 introductory . : McGraw Hill.

Gaya MLA

J.O'Leary, Thimothy., O'Leary, Linda, I.. "Computing essentials 2012 introductory". : McGraw Hill, 2012. Text.