Estimated world requirement of Narcotics Drugs   And estimates of world production of opium in 1968.    

 - New York  United Nations          1968 
 - 39p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3:(F56).N68, K8/UN