Estimated world requirments of narcotic drugs in 1952. 

 - Geneva  UN            1952 
 - 18p. Suppl.3  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3(F56).N52, J2/UN