000 00302nam a2200109Ia 4500
008 220201s1967 xx 000 0 eng d
100 _aIndian Standard Institution
245 0 _aIS:3842 Application guide for electric relays for AC systems
260 _bDelhi:I.S.I
_c1967
300 _a14
942 _2ddc
999 _c74598
_d74598