Mellanby, Helen. <br/><br/>
Animal life in fresh water :  a guide to fresh-water invertebrates / 
Helen Mellanby. 
 - London :  Chapman and Hall,  1975. 
 - xi, 308 p. :  ill. ;  19 cm. 
 - Science paperbacks ;  120 .
<br/><br/> Distributed in the USA by Halsted Press, a division of J. Wiley, New York. 
<br/><br/>Includes bibliographies and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0412213605 
<br/><br/><label>LCCN: </label>7517181  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater animals.