000 00318nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a333.91 A182
100 _aACKRMAN,E.A
245 0 _aTECHNOLOGY IN THE AMERICAN WATER DEVELOPMENT
260 _aBALTIMORE
_bJohns Hopkins
_c1959
300 _a23X16
942 _cBK
_2DDC
999 _c14883
_d14883