Paul S. Welch <br/><br/>
Limnology. Ed 2 

 - 2nd Ed 
 - Nes York  McGraw-Hill Book Co.  1952 
 - 538p 
<br/><br/>Paul S. Welch: Limnology. Ed 2.  (2nd Ed)  Nes York.  McGraw-Hill Book Co., 1952.--(574-8929WEL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label> / WEL