Halpern, Stephen. <br/><br/>
Police -Assoiation and department leaders :    the politics of co-op eration /  
Stephen C.Halpern. 
 - Lexington :    Lexington Books,    1974 
 - xi, 127 p. ;    24 cm. 
<br/><br/><label>ISBN: </label>0669929816 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Trade unions -- Police -- United States -- Case studies.
<br/><br/><label>Dewey Class. No.: </label>331.88 HAL