Yellow-fever vaccinating centres for international travel :  situation as on 24 April 1970. 

 - Geneva :  W.H.O.,  1970. 
<br/><br/> Title in English and French. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vaccination -- Law and legislation.--Vaccination -- Law and legislation.<br/>Yellow fever -- Vaccination.--Yellow fever -- Vaccination.