Wetzel, R.G <br/><br/>
Limnology 
Robert G. Wetzel 
 - Philandelphia  Saunders college Pub.  1975 
 - xii, 743p.:  ill, Pbk.; 
<br/><br/><label>ISBN: </label>0721692400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limnology