000 00317nam a2200121Ia 4500
003 3075
008 ||||||n9999 ||||| |||| 00| 0|eng |
041 _aeng
100 _aPerkins, F T.
245 0 _aInternational symposium Vaccination Against Communicable Diseases
260 _aLondon
_bS. Karger
_c1973
300 _a407
999 _c24612
_d24612