000 00235nam a2200109Ia 4500
020 _a9788174092380
082 _a621.317
100 _aUPPAL, S.L
245 _aELECTRICAL POWER SYSTEMS
260 _aNEW DELHI
_b KHANNA
_c2011
942 _cBK
999 _c7201
_d7201