PRINCIPLES AND METHODS FOR THE PROVISION OF ECONOMIC INCENTIVES IN WATER SUPPLY AND WASTE WATER .. 

 - New York :  United Nations,  1976 
 - 24 pages 
<br/><br/><br/>In English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply<br/>WASTE WATER.
<br/><br/><label>Universal Decimal Class. No.: </label>628.1