APA (7th ed.) Citation

Lock, J. (1986). Blue murder?: Policemen under suspicion. Hale.

Chicago Style (17th ed.) Citation

Lock, Joan. Blue Murder?: Policemen Under Suspicion. London: Hale, 1986.

MLA (8th ed.) Citation

Lock, Joan. Blue Murder?: Policemen Under Suspicion. Hale, 1986.