Welch, Paul S. <br/><br/>
Limnology / 
by Paul S. Welch. 
 - 2nd ed. 
 - Delhi:  Narendra Publishing House,  2010. 
 - ix, 538p. 
<br/><br/><label>ISBN: </label>9788190795241 
<br/><br/><label>Dewey Class. No.: </label>G95574  / Q0