000 00397nam a2200181Ia 4500
008 240104s9999 xx 000 0 und d
082 _a540.2462
082 _bDar
100 _aDara, S. S.
245 0 _aTextbook of engineering chemistry
250 _a12th
260 _aNew Delhi
260 _bS.Chand
260 _c2022
300 _axvi, 972
700 _aUmare, S.S.
942 _cBK
999 _c183626
_d183626