Brown, D.S. <br/><br/>
Fresh water snails of Africa and their medical importance 

 - London  Taylor and francis Ltd  1980 
 - 487p. 
<br/><br/><label>ISBN: </label>0850661455 
<br/><br/><label>Subjects--Index Terms: </label>Gastropoda  Mollusca  Zoology 
<br/><br/><label>Universal Decimal Class. No.: </label>594.3:61  / BRO