000 00248nam a2200097Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aSUBRAMANIAN (V)
245 2 _aA T. B. IN ENIRONMENTAL SCIENCE
260 _bNAROSA BOOK DISTRIBUTOR
942 _2ddc
999 _c98310
_d98310