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. Congress. Senate. Committee on Interstate Commerce,"Investigation of railroads, holding companies, affiliated companies, and related matters : hearings before a subcommittee of the Committee on Interstate Commerce, United States Senate, Seventy-fourth Congress, second session [-Seventy-seventh Congress, second session], pursuant to S. Res. 71 (74th Congress), authorizing an investigation of interstate railroads and affiliates with respect to financing, reorganizations, mergers, and certain other matters",,U.S. Govt. Print. Off.,1937,,,,,https://cir.nii.ac.jp/crid/1130282271990506368