000 00249nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aKUMAR (ANIL)
245 0 _aENVIRONMENTAL CHEMISTRY
250 _a3RD
260 _bNEWAGE INT. PUB
942 _2ddc
999 _c97608
_d97608