Bristow, A. P. (1969). Effective police manpower utilization. Thomas.
Lua i Stíl Chicago (17ú heag.)Bristow, Allen P. Effective Police Manpower Utilization. Springfield, Ill: Thomas, 1969.
Lua MLA (9ú heag.)Bristow, Allen P. Effective Police Manpower Utilization. Thomas, 1969.
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