000 00335nam a2200145Ia 4500
008 220919s9999 xx 000 0 und d
082 _bRAT
100 _aRATTAN, SUNITA
245 0 _aENGINEERING CHEMISTRY
250 _a5TH
260 _bSK KATARIA & SONS, NEW DELHI
_c2009
300 _a583
650 _aChemistry
942 _cBK
999 _c145036
_d145036