Brown, D. S. (David Seymour) <br/><br/>
Freshwater snails of Africa and their medical importance / 
by D.S. Brown 
 - London :  Taylor & Francis,  1980 
 - x, 487 p. :  ill. ; maps  24 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0850661455 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gasteropoda as carriers of disease--Africa<br/>Gasteropoda--Africa<br/>Mollusks--Africa<br/>Snails<br/>Trematoda<br/>Trematode infections