Estimated would requirements of narcotic drugs and estimates of would production of opium in 1967. 

 - Geneva  United Nations           1967 
 - 25p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>x9:77:(G:55) . IN45.N99, N99