000			00338nam a2200145Ia 4500
008			170101s1967 xx 000 0 und d
082			_a621.31 W27E
100			_aWEEDAY, B.M
245		0	_aElectric power systems
260			_bLondon _c1967
300			_a307p
650			_aELECTRIC POWER
653			_aELECTRIC POWER
942			_2ddc _cB
999			_c24886 _d24886