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

 - 2d ed 
 - New York  McGraw-Hill  1952 
 - xiii,538 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EARTH SCIENCE
<br/><br/><label>Dewey Class. No.: </label>551.48  / WEL