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020 _a8121905399
040 _aUPES LIBRARY
_bEnglish
082 _a540
_bDAR
100 _aDara, S. S.
_91823
245 _aEngineering chemistry
260 _aNew Delhi :
_bS. Chand,
_c2006
300 _a958p.
650 _aChemistry
942 _cBK
999 _c4673
_d4673