Cita APA (7th ed.)

O'Leary, T. J. (2004). Computing today. McGrawHill Technology Education.

Cita Chicago (17th ed.)

O'Leary, Timothy J. Computing Today. Boston: McGrawHill Technology Education, 2004.

Cita MLA (9th ed.)

O'Leary, Timothy J. Computing Today. McGrawHill Technology Education, 2004.