Report of the industrial development board    On the work of its thirteenth session.    

 - New York  UN           1979 
 - v,47p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3(X9:77).N79r, L9/UN