International travel and health : vaccination requirements and he alth advice : situation as on 1 January 1997 / World Health Organ isation - Geneva, Switzerland : World Health Organisation , 1997. - 106 p. : ill. , 24 cm. Includes Bibliographical references and index ISBN: 9241580224 Subjects--Topical Terms: Communicable Disease ControlTravelVaccination National Library of Medicine Call No.: WHO WA 110 / In8 1997