000 00250nam a2200121Ia 4500
654 _aCIVI
100 _aPhelts, E.B.
245 _aStream Sanitation
260 _bWiley Eastern Ltd.
_c1950
082 _bPHE
300 _a288p.
999 _c23863
_d23863
300 _c23 cm.
655 _aC-13
041 _aeng
546 _aText in English