000 00273nam a2200121Ia 4500
008 160921s9999 xx 000 0 und d
100 _aSUNITA RATTAN
245 _aCOMPREHENSIVE ENGINEERING CHEMISTRY
250 _a1st
260 _bKATARIA
_c2009
300 _a660
942 _cBK
999 _c46
_d46