Police and Policing in the Twentieth Century/  THE HISTORY OF POLICING 
Williams,Chris A. 
 - 1st ed. 
 - England:  ASHGATE,  2011. 
 - 511p.p. 
<br/><br/><label>ISBN: </label>9780754629542 
<br/><br/><label>Dewey Class. No.: </label>363.209410904  / WIL/P