Welch, Paul S. <br/><br/>
Limnology 

 - New York  McGraw- Hill     1952 
 - xi, 538 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Earth science<br/>  Biology<br/>  Ecology
<br/><br/><label>Dewey Class. No.: </label>757  / V439l