APA (7th ed.) Citation

Shea, B. (2002). Have you locked the castle gate?: Home and small-business computer security. Addison-Wesley.

Chicago Style (17th ed.) Citation

Shea, Brian. Have You Locked the Castle Gate?: Home and Small-business Computer Security. Boston: Addison-Wesley, 2002.

MLA (9th ed.) Citation

Shea, Brian. Have You Locked the Castle Gate?: Home and Small-business Computer Security. Addison-Wesley, 2002.