Memorandum on the control of outbreaks of smallpox 

 - London :  Hmso,  1975 
<br/><br/> Infection Control 
<br/><br/><label>ISBN: </label>0113206364 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public Health
<br/><br/><label>Dewey Class. No.: </label>614.521 GRE