MAR Del plata action plan United Nations Water Conference , Mar Del Plata, Argentina 14 - 25 March 1977 

 - 78 pages 
<br/><br/><br/>in English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water resources--congresses<br/>WATER MANAGEMENT
<br/><br/><label>Universal Decimal Class. No.: </label>551.48