Prescott, G. W.  1899- <br/><br/>
Algae :  of the western great lakes area. With an illustrated key to the genera of desmids and freshwater diatoms / 
G. W. Prescott 
 - Rev. ed. 
 - Koenigstein :  Otto Koeltz Science Publishers,  1962 
 - xiii, 977 p. :  ill. ;  22 cm. 
<br/><br/>Includes indexes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algae--Lake States<br/>Algae--Bibliography