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 United States. Bureau of the Census,Telegraphs and municipal electric fire-alarm and police-patrol signaling systems,,G.P.O.,1919,Census of electrical industries,,,,https://cir.nii.ac.jp/crid/1130282273087370624