000 00325nam a2200121Ia 4500
008 220201s1962 xx 000 0 eng d
041 _aENG
100 _aWARRINGTON, C
245 0 _aPROTECTIVE RELAY
_bTHEIR THEORY AND PRACTICE
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1962
300 _a484
942 _2ddc
999 _c40658
_d40658