Sturman, C. (1981). Police: An in-depth investigation of a police force in action. Purnell.
Chicago-viite (17. p.)Sturman, Clive. Police: An In-depth Investigation of a Police Force in Action. Maidenhead: Purnell, 1981.
MLA-viite (8. p.)Sturman, Clive. Police: An In-depth Investigation of a Police Force in Action. Purnell, 1981.
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