Estimatd world requirments of narcotic drugs in 1972. 

 - New York  UN           1971 
 - xviii,75p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3:(F:56).N71, L1/UN