000 nam a22 7a 4500
999 _c10116
_d10116
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008 180510b xxu||||| |||| 00| 0 eng d
100 _aSingh,B
245 _aGate Mechanical Engineeering 2017
250 _a19th
260 _aNew Delhi
_bMade Easy
_c2016
300 _a734p.
942 _2ddc
_cDB