000 00304nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
082 _a628 P538
100 _aPHELPS,E.B
245 0 _aPUBLIC HEALTH ENGINEERING
250 _a2
260 _aNEW YORK
_bWiley
_c1955
300 _a22X14
942 _cBK
_2DDC
999 _c11206
_d11206