World Health Organization <br/><br/>
The Control of schistosomiasis  second report of the WHO expert committee 
World Health Organization. 
 - Geneva  World Health Organization  1993 
 - vii, 86p., 23cm 
<br/><br/><label>ISBN: </label>92 - 4 - 120830 - 9. 
<br/><br/><label>Dewey Class. No.: </label>614.553  / W83C