PRESCOTT, G. W. <br/><br/>
How to know the Freshwater Algae 
G. W. PRESCOTT 
 - 3rd ed. 
 - America  Wm. C. Brown Pub.  1970 
 - x, 293p. 
 - The Pictured Key Nature Series .
<br/><br/><label>ISBN: </label>697047555