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
"Schmidt, Carl Theodore","German business cycles, 1924-1933",,National Bureau of Economic Research,1934,"Publications of the National Bureau of Economic Research, Incorporated",,,,https://cir.nii.ac.jp/crid/1130000794729353984