International travel and health  vaccination requirements and health advice 
by World Health Organization 
 - Geneva  World Health Organization  1990 
 - 89 p. ; 21 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9241580151 
<br/><br/><label>Dewey Class. No.: </label>613.68  / N90