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020 _a9788123919065
040 _cMUIT
082 _a615.5
_bDEW-O
_21
100 _aDEWAN, S.K.
245 0 _aORGANIC SPECTROSCOPY ( N M R, IR, MASS AND UV )
260 _bCBS PUBLISERS & DISTRIBUTORS
_aNEW DELHI
_c2019
300 _a662
942 _cBK
_2ddc