000 00293nam a2200109Ia 4500
020 _a8122405940
100 _aSingh L P
245 _aDigital Protection:Protective Relaying from electromechanical to Microprocessor
260 _c1994
_bWILEY EASTERN
_aNew Delhi
300 _axi+228
942 _cBK
999 _c21804
_d21804