Police and policing in the twentieth century / 
edited by Chris A. Williams. 
 - Burlington, VT :  Ashgate Pubishing,  2011. 
 - xxiv, 511 p. ;  24 cm. 
 - The history of policing. .
<br/><br/>Includes bibliographical referneces and index. 
<br/><br/><label>ISBN: </label>9780754629542 (hardback : alk. paper)  RM625.36 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Police--History--United Kingdom--20th century.