Grogger, Jeff <br/><br/>
The introduction of crack cocaine and the rise in urban crime rates 

 - Cambridge, Mass. :  National Bureau of Economic Research,  1998 
 - 36 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CRACK (DRUG)<br/>CRIME<br/>ECONOMICS--RESEARCH
<br/><br/><label>LC Class. No.: </label>HV5810  / G763I