Annual report of the Director of the Pan American  Sanitary Bureau Regional Office of the World  Health Organization, 1969 

 - Washington :  OPS,  WAo., c1970. 
 - 293p. 
 - Serie: Officials Documents;  102 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Salud Pública-Prevención y Control.<br/>Servicios de Salud.
<br/><br/><label>Dewey Class. No.: </label>DO  / OPS