Vaccination certificate requirements for international travel  situation as on 1 January 1982 and health advice to travellers 

 - Geneva  World Health Organization  1982 
 - 70 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>9241580062 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communicable Disease Control.<br/>Travel.<br/>Vaccination--legislation and jurisprudence.