000 00370nam a22001577a 4500
999 _c22805
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005 20210719153145.0
008 210719b xxu||||| |||| 00| 0 eng d
020 _a9788173718106
082 _a543 SIN
100 _aSingh, N B
245 _aEngineering Chemistry
250 _a1st
260 _aNew Delhi
_bUniversity
_c2012
300 _a270p.
942 _2ddc
_cBK