Walker, Samuel,  1942- <br/><br/>
The police in America :  an introduction / 
Samuel Walker. 
 - 2nd ed. 
 - New York :  McGraw-Hill,  c1992. 
 - xxii, 412 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Police administration--United States.<br/>Police--United States
<br/><br/><label>Subjects--Index Terms: </label>An ninh quốc gia Cảnh sát Mỹ 
<br/><br/><label>Dewey Class. No.: </label>363.2/0973  / WAL 1992