APA (7th ed.) Citation

Shelly, G. B., & Cashman, T. (2004). Understanding and troubleshooting your PC. Course Technology.

Chicago Style (17th ed.) Citation

Shelly, Gary B., and Thomas Cashman. Understanding and Troubleshooting Your PC. Boston: Course Technology, 2004.

MLA (9th ed.) Citation

Shelly, Gary B., and Thomas Cashman. Understanding and Troubleshooting Your PC. Course Technology, 2004.