Fenner, F  <br/><br/>
Smallpox and its eradication 

 - Geneva:   World Health Organizations,   1988 
 - xiii, 1460p. 
<br/><br/><label>ISBN: </label>92-4-156110-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Smallpox
<br/><br/><label>Subjects--Index Terms: </label>Eradication 
<br/><br/><label>Universal Decimal Class. No.: </label>616.912.614.4  / M8