Cohen, Bernard,  1937-,  author. <br/><br/>
New York City's police :  the background and performance of the class of'57 / 
Bernard Cohen, Jan M. Chaiken. 
 - 29 pages ;  28 cm. 
 - The Rand paper series ;  P-4966 .
 - Rand paper series ;  P-4966 .
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Police--New York (State)--New York.<br/>Law enforcement.