Belcher, Hilary. <br/><br/>
A beginner's guide to freshwater algae / 
Hilary Belcher & Erica Swale ; [for the] Institute of Terrestrial Ecology .. 
 - London :  H.M.S.O.,  1976. 
 - 47p. 
<br/><br/><label>ISBN: </label>0118813935 (sd) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater algae.