Cita APA (7th ed.)

O'Leary, T. J., & O'Leary, L. I. (2008). Computing essentials 2008. McGraw-Hill/Irwin.

Cita Chicago (17th ed.)

O'Leary, Timothy J., i Linda I. O'Leary. Computing Essentials 2008. Boston: McGraw-Hill/Irwin, 2008.

Cita MLA (9th ed.)

O'Leary, Timothy J., i Linda I. O'Leary. Computing Essentials 2008. McGraw-Hill/Irwin, 2008.