Belcher, Hilary <br/><br/>
A beginner's guide to freshwater algae / 
Hilary Belcher & Erica Swale. 
 - London :  H.M. Stationery Off.,  1976. 
 - 47 p. :  ill. ;  21 cm. 
<br/><br/> At head of title: Institute of Terrestrial Ecology, Natural Environment Research Council. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>ISBN: </label>0118813935  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater algae--Identification
<br/><br/><label>Dewey Class. No.: </label>589.3929