APA (7th ed.) Citation

Barker, T. (2006). Police ethics: Crisis in law enforcement (2. ed.). Thomas.

Chicago Style (17th ed.) Citation

Barker, Tom. Police Ethics: Crisis in Law Enforcement. 2. ed. Springfield, Ill: Thomas, 2006.

MLA (9th ed.) Citation

Barker, Tom. Police Ethics: Crisis in Law Enforcement. 2. ed. Thomas, 2006.