World Health Organisation <br/><br/>
World health statistics annual 1967  Worl Health Organisation, Geneva. 

 - Geneva  World Health Organization  1970 
 - 345p. 23cm. 
<br/><br/>Content: V.2: Infectious diseases: causes, deaths and vaccinations. 
<br/><br/><label>Dewey Class. No.: </label>610.021  / W84W