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020 _c230
_a9788179680933
040 _aET
082 _a540.76 KHA S
100 _aKhanna, S.K.
_910166
245 0 _aObjective chemistry:
_bIIT- screening
260 _bGolden Bells
_aNew Delhi
300 _a648p.
650 _aChemistry
_910131
700 _aVerma, N.K.
_98015
942 _cBK
999 _c14573
_d14573