Mellanby, Helen <br/><br/>
Animal life in fresh water : a guide to fresh-water invertebrates / 
Mellanby, Helen 
 - viii, 308 p. : ill; 
 - Science paperbacks, 120 .
<br/><br/> Zool Expl.: 6. Aufl. 1963, 2. Druck 1971. 
<br/><br/><label>ISBN: </label>9780412213601 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater animals<br/>Faune d'eau douce -- Grande-Bretagne<br/>Invertebres.
<br/><br/><label>Dewey Class. No.: </label>597.01