MELLANBY, Helen <br/><br/>
Animal life in fresh water: a guide to Fresh-Water invertebrates 
/ [by] Helen Mellanby 
 - London  Chapman and Hall  0 
 - viii, 308 p. 
<br/><br/> Includes references and index. 
<br/><br/><label>ISBN: </label>412213605 
<br/><br/><label>Dewey Class. No.: </label>574.729  / MEL