Proceedings.4V. 

 - New York  UN           1966 
 - United Nations , Economic and Social Affairs (Deptt of-), publication  V1 : Summary report. (349p) .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5p1,N65, K6/UN