Active immunization against common communicable diseases of childhood : report of a group of consultants convened by the Director-General, Geneva, 25-28 May 1949. 

 - 17p. 
 - (WHO technical report series ; 6). .
<br/><br/><label>ISBN: </label>92-4-120006-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Immunization<br/>Communicable disease control--Methods<br/>Communicable diseases--In infancy and childhood