000 00307nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"V.K.AHULWALIA, SUNITHA MALHOTRA"
245 0 _aENVIRONMENTAL SCIENCE
260 _b"ANE BOOKS, PVT LT.NEW DELHI"
260 _c2013
365 _b295.00
942 _cBK
999 _c170232
_d170232