Ground Water Studies 

 - The Unesco  Press  Parris  1975 
 - 6.3-5p.  ILL.,Cht.,Fig and Table 
<br/><br/><label>ISBN: </label>92-3-100960-5 
<br/><br/><label>Nat. Bib. No.: </label>3478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Sciences & Geology 
<br/><br/><label>Universal Decimal Class. No.: </label>551.495  / GRO