APA (7th ed.) Citation

Ruditis, P. (2004). Buffy the vampire slayer: The watcher's guide. Simon Spotlight.

Chicago Style (17th ed.) Citation

Ruditis, Paul. Buffy the Vampire Slayer: The Watcher's Guide. New York, N.Y.: Simon Spotlight, 2004.

MLA (9th ed.) Citation

Ruditis, Paul. Buffy the Vampire Slayer: The Watcher's Guide. Simon Spotlight, 2004.