Siegel, Larry J.,  1947- <br/><br/>
Juvenile delinquency :  the core / 
Larry J. Siegel, Brandon C. Welsh. 
 - 4th ed. 
 - Belmont, CA :  Wadsworth/Cengage Learning,  c2011. 
 - xxi, 457 p. :  ill. ;  28 cm.