Fenner,F.,[et al] <br/><br/>
Small pox and its eradication   
by F. Fenner,[et al] 
 - Geneva  World Health Organization  1988 
 - xvi, 1460p. 
 - History of international piblic health  No.6 .
<br/><br/><label>ISBN: </label>9241561106 
<br/><br/><label>Dewey Class. No.: </label>614.521  / N88