United Nations, Economic and social council. Official Records   fifty-first session. 5-30 July 1971.    

 - New York  U.N.           1971 
 - 249p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3.N71, L1/UN