Proceeding on expert working group meeting on water resources data systems and water use data 

 - New York       United Nations         1980 
 - 149p.  cm. 
 - Water resources series; 53 .
<br/><br/><label>Standard No.: </label>51645 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Action of water
<br/><br/><label>Dewey Class. No.: </label>H422p1,N78, M0