Gaya APA

O'Leary, T, J., O'Leary, L, I. (1999). Computing essentials (Introductory ed.). mau: Irwin/McGraw-Hill.

Gaya MLA

O'Leary, Timothy, J.., O'Leary, Linda, I.. "Computing essentials". Introductory ed. mau: Irwin/McGraw-Hill, 1999. print.