000 00299nam a2200121Ia 4500
008 160710s1964 xx 000 0 und d
082 _aWIL
100 _aWILLIARD,WILLIAM R.
245 _aJOURNAL OF PUBLIC HEALTH
260 _bBECTN,DICKINSON AND COMPANY
_c1964
300 _a2124
942 _2ddc
_cB
999 _c35425
_d35425