Gaya APA

Regan, P, E., Helba, S. (2003). Troubleshooting the PC: With A+ preparation (2). New Jersey: Prenctice Hall.

Gaya MLA

Regan, Patrick, E.., Helba, Stephen. "Troubleshooting the PC: With A+ preparation". 2 New Jersey: Prenctice Hall, 2003. Text.