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 "American Railway Association, Signal Section",Mechanical and electro-mechanical interlocking,,"Pub. by the Signal Section, A.R.A.",1933,American railway signaling principles and practices,,,,https://cir.nii.ac.jp/crid/1130000794045451264