000 00335nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
082 _a628.8 S615
100 _aSINGH,A
245 0 _aCURRENT PRACTICES IN ENVIRONMENTAL ENGINEERING
250 _a3
260 _aACADEMIC
_bI.B.TGEO-ENVIRON
_c1984
300 _a25X15
942 _cBK
_2DDC
999 _c21475
_d21475