000 00349nam a2200133Ia 4500
008 170101s2000 xx 000 0 und d
020 _a8120413938
100 _aDatta Amal K
245 0 _aEnvironmental Science And Engineering Intro.
260 _aNew Delhi
_bOxford and IBH
_c2000
300 _a188
650 _aEnvironmental
942 _2ddc
_cBK
999 _c219743
_d219743