APA (7th ed.) Citation

Hain, P., & Humphry, D. (1979). Policing the police. Calder.

Chicago Style (17th ed.) Citation

Hain, Peter, and Derek Humphry. Policing the Police. London: Calder, 1979.

MLA (8th ed.) Citation

Hain, Peter, and Derek Humphry. Policing the Police. Calder, 1979.