Dyfyniad APA

O’Leary, T. J., & O’Leary. Computing essentials 2008 (Complete ed., 19th.). McGraw-Hill/Irwin.

Dyfyniad Arddull Chicago

O’Leary, Timothy J., and O’Leary. Computing Essentials 2008. Complete ed., 19th. New York, NY: McGraw-Hill/Irwin.

Dyfyniad MLA

O’Leary, Timothy J., and O’Leary. Computing Essentials 2008. Complete ed., 19th. McGraw-Hill/Irwin.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.