Ward, Henry Baldwin, <br/><br/>
Fresh-water biology / 
Henry Baldwin Ward; George Chandler Whipple; W. T. Edmondson 
 - 2d ed. 
 - New York :  Wiley,  1959 
 - xx, 1248 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater biology.
<br/><br/><label>Dewey Class. No.: </label>578.76  / WAF 1959