000 00259nam a22001217a 4500
003 SGT
082 _bRAT
100 _aRATTAN SUNITA
245 _aA. TEXTBOOK OF ENGINEERING CHEMISTRY
260 _bS.K KATARIA PUB.
_c2017
300 _a1208
942 _2ddc
_cBK
999 _c15687
_d15687