000 00280nam a2200109Ia 4500
008 210324s2000 xx 000 0 und d
041 _aeng
082 _a543
100 _aKumar, R.
_91588318
245 _aEnvironmental Chemistry hazards
260 _aN. Delhi
_bSarup & Sons
_c2000
999 _c1036949
_d1036949