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 "Schumann, Christian Gustav Waldemar and Van den Bogaerde, F. (Frans)",Economic diagnosis and business forecasting : with special reference to South Africa,,"[Bureau for Economic Research, Faculty of Commerce, University of Stellenbosch]",1954,Publikasie,,,,https://cir.nii.ac.jp/crid/1130000797348936192