Greenhalgh, Malcolm <br/><br/>
Freshwater life 
Malcolm Greenhalgh, Denys Ovenden 
 - 1st ed 
 - London  HarperCollins Publishers  2007 
 - 256 p. : ill., 18 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780007177776 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater animals<br/>Freshwater plants<br/>Great Britain
<br/><br/><label>Dewey Class. No.: </label>591.76094 GRE