000 00261nam a2200109Ia 4500
008 190830s9999 xx 000 0 und d
082 _a540 DAR
100 _aS S Dara
245 2 _aA textbook of engineering chemistry
260 _bS. Chand
_c2008
942 _cBOOK
999 _c54932
_d54932