Ground water quality and monitoring in Asia and the pacfic 

 - New  York United Nations U S A    1991 
 - 230p.  cm. 
 - "U N , Water Resources Series, 70" .
<br/><br/><label>Standard No.: </label>84224 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>"X9(D2).4.N9, N1/UN"