World Water Resources: A New Appraisal and Assessment for the 21st Century 

 - U.K: UNESCO,  1998 
 - 37p, illust, 30cm 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>U.K.<br/>Appraisal and Management.<br/>Water Resources