Montresor, A; Crompton, D W T; Gyorkos, T W & Savioli, L <br/><br/>
Helminth control in school-age children  a guide for managers of control programmes 

 - World Health Organization, Geneva  2002 
 - viii,64 
<br/><br/><label>ISBN: </label>92-4-154556-9 
<br/><br/><label>Dewey Class. No.: </label>371.3 Hel