000 00303nam a2200121Ia 4500
008 220201s1991 xx 000 0 eng d
100 _aMason, C Rassell
245 4 _aThe art & science of protective relaying
250 _a8
260 _bNew Delhi : Wiley Easten
_c1991
300 _a410
942 _2ddc
999 _c84694
_d84694