APA (7th ed.) Citation

Geier, E. (2007). Simple computer security: Disinfect your PC. Wiley Pub.

Chicago Style (17th ed.) Citation

Geier, Eric. Simple Computer Security: Disinfect Your PC. Indianapolis, IN: Wiley Pub, 2007.

MLA (9th ed.) Citation

Geier, Eric. Simple Computer Security: Disinfect Your PC. Wiley Pub, 2007.