Senker, Cath. <br/><br/>
World Health Organization / 
Cath Senker. 
 - London :  Hodder Wayland/White-Thomson Publishing,  2003. 
 - 48 p. :  ill.(col ;  25cm. 
<br/><br/> Includes index. Includes bibliographical references: p. 47. 
<br/><br/><label>ISBN: </label>0750243341 
<br/><br/><label>Dewey Class. No.: </label>362.1 SE WO