000			00309nam a2200133Ia 4500
008			220201s1955 xx 000 0 eng d
082			_a621.3
100			_aDawes,CL
245		0	_aCousre in electrical engineering
250			_a4th
260			_bNew york:Mc graw. Hill _c1955
300			_a736
942			_2ddc
999			_c79974 _d79974