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

 - Geneva:  World Health Organization,  1988 
 - xvi, 1460p.:  ill. ;  26 cm. 
<br/><br/> Acc. No. 09545 
<br/><br/><label>ISBN: </label>9241561106 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Smallpox