Cheek, J. C., & Lesce, T. (1989). Plainclothes and off-duty officer survival: A guide to survival for plainclothes officers, undercover officers, and off-duty police officers. Thomas.
Cita Chicago Style (17a ed.)Cheek, John C., y Tony Lesce. Plainclothes and Off-duty Officer Survival: A Guide to Survival for Plainclothes Officers, Undercover Officers, and Off-duty Police Officers. Springfield, Ill: Thomas, 1989.
Cita MLA (9a ed.)Cheek, John C., y Tony Lesce. Plainclothes and Off-duty Officer Survival: A Guide to Survival for Plainclothes Officers, Undercover Officers, and Off-duty Police Officers. Thomas, 1989.
Precaución: Estas citas no son 100% exactas.