Spergel, Irving. <br/><br/>
Street gang work :  theory and practice / 
Irving Spergel. 
 - Reading, U.S.A. :  Addision-Wesley,  c1966. 
 - xviii, 249 p. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>SSCA1295 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social work with juvenile delinquents
<br/><br/><label>Dewey Class. No.: </label>362.7  / St