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Allen& Unwin , 1951
Koleksi Publik
Varwell, D. W. P.
Police and the public / D. W. P. Varwell; editor, Sir John McKay
MacDonald and Evans, 1978
Buku Teks
Weatheritt, Mollie
Innovations in policing / Mollie Weatheritt
Croom Helm, 1986
Buku Teks
Chopra, Deepak
The return of Merlin : a novel Author / Deepak Chopra
Harmony Books, 1995
Buku Teks
Bevan, Vaughan
The investigation of crime : a guide to police powers / Vaughan Bevan, Ken Lidstone
Butterworth, 1991
Buku Teks