Welch, Paul Smith,  1882- <br/><br/>
Limnology / 
Paul S. Welch 
 - 2nd ed. 
 - New York :  McGraw-Hill,  c1952 
 - xi, 538 p. :  ill. ;  24 cm. 
 - McGraw-Hill publication in the zoological sciences .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> USD 8.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Limnology
<br/><br/><label>Dewey Class. No.: </label>551.48