著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Ducloux, G.",Data and circuits of receiver and amplifier valves (1st supplement),,N.V. Philips' Gloeilampenfabrieken (Philips Industries),1949,Philips technical library,,,,https://cir.nii.ac.jp/crid/1130000794610248576