Wetzel, Robert G.  <br/><br/>
Limnology :  lake and river ecosystems/ 
Robert G Wetzel. 
 - 3rd ed.  
 - USA :  Academic press,  2001. 
 - 
<br/><br/> includes index  
<br/><br/><label>ISBN: </label>813120345 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lake and river ecosystems 
<br/><br/><label>LC Class. No.: </label>QH 96  / .W47 2001