000			00366nam a2200157Ia 4500
008			160615s9999 xx 000 0 und d
100			_aMCARTHUR(E D)
245			_aElectronics and electron tubes
260			_aNew York
260			_b"John wiley & sons,Inc"
260			_c1936
300			_av p. + 173
942			_cBooks
999			_c4813 _d4813