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 "Conference on Unemployment (1921 : Washington, D.C.). Committee on Recent Economic Changes and Wolman, Leo",Planning and control of public works : Report of the Committee on Recent Economic Changes of the President's Conference on Unemployment,,National Bureau of Economic Research,1930,"Publications of the National Bureau of Economic Research, Incorporated",,,,https://cir.nii.ac.jp/crid/1130282269524525440