JohnD. Wehr and Robert G.Sheath <br/><br/>
FreshWater Algae Of North America 

 - New York  Acadaemic Press  2003 
 - 918p 
<br/><br/><label>ISBN: </label>0127415505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fresh water Algae
<br/><br/><label>LC Class. No.: </label>QK 569.A43