000 00330nam a2200133Ia 4500
008 221117s9999 xx 000 0 und d
082 _bCHA
100 _aCHAWLA, SASHI
245 0 _aENGINEERING CHEMISTRY
250 _a3RD
260 _bDHANPAT RAI PUBLICATIONS (P) LTD., NEW DELHI
_c2011
650 _aChemistry
942 _cBK
999 _c213818
_d213818