Health education in the control of schistosomiasis / 
World Health Organization. 
 - Geneva :  World Health Organization,  1990. 
 - 61 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>92-4-154407-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Schistosomiasis--Prevention<br/>Health education