Welch, Paul S. <br/><br/>
Limnological methods 

 - Delhi  Narendra Publishing House  2009 
 - xviii, 381 p. 
<br/><br/><label>ISBN: </label>8185375704 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limnology
<br/><br/><label>Dewey Class. No.: </label>577.6  / WEL