Ground water: A Threatened Resource  

 - Nairobi   United Nations Environment Programme 1996. 
<br/><br/><label>ISBN: </label>UNEP Environment Library no 15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>577.01 GRO