World Health Organisation <br/><br/>
Hygiene and public health  World Health Organisation. 

 - s.l.  s.n.  [19 
 - xxvi, 726p.: ill. 18cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine Health and hygiene  Preventive medicine. 
<br/><br/><label>Dewey Class. No.: </label>616  / H99H