Water resources development centre   Third biennial report.    

 - New York  United Nations          1964 
 - 81p.  cm. 
<br/><br/> Official records: 37th session supplement no. 13. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3.N64, K4/UN