000 00407nam a2200133Ia 4500
100 _aWorld Health Organization
020 _a92 4 158015 1
654 _aHealth & Hygiene
942 _cBK
245 _aInternational travel and health : vaccination requirements and health advice
_BSituation as on 1 January 1990
260 _aWorld Health Organization, Geneva
_c1990
082 _a614.47 WHO
300 _a89p
999 _c32045
_d32045