Report to the economic and social council on the work of the board in 1957. 

 - Geneva  UN            1957 
 - 83p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3:(XoaY).N57, J7/UN