000			00371nam a2200133Ia 4500
008			140215s9999 xx 000 0 und d
084			_aL:55 _bPRE;1951
100			_aPrescott, S C.
245			_aSedgwicks Principles of sanitary science and public health / _b
260			_bThe Macmillan Co. , _aNew York : _c1951
300			_a654p :
650			_aHygiene
942			_2cc _cBK
999			_c9864 _d9864