strategies for combating narcotics wholesalers :  investigative approaches that work. 

 - washington dc:   1992.  
 - paperback  
<br/><br/> 25pp., 28x22 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cocaine<br/>Drugs<br/>heroin<br/>informants<br/>investigation<br/>Market