Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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