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020 _a978938169103
040 _cSGVU Library
041 _cEng.
100 _aSingh,B
245 _aIAS,PSUs General studies upsc engineering exam state services exam public sector exam
_cB Singh
260 _aNew Dehli
_bS.Chand & Co, New Delhi.
_c2013
300 _a807
520 _aEngineering
650 _aEngineering
942 _cBOOKS
999 _c33145
_d33145