Silva, E.I.L. <br/><br/>
Water analysis   user friendley field laboratary 

 - Kandy<br/>  Institute of Fundamental Studies  1996 
 - 193p. 
<br/><br/><label>ISBN: </label>9552600324 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical Science
<br/><br/><label>Dewey Class. No.: </label>546.22  / SIL