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 "Epstein, Ralph Cecil",Industrial profits in the United States,,National Bureau of Economic Research in Cooperation with the Committee on Recent Economic Changes,1934,"Publications of the National Bureau of Economic Research, Incorporated",,,,https://cir.nii.ac.jp/crid/1130282270342375168