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
"Swan, Harold C. (Harold Couch)","Economic situation in the Belgian Congo, and the territories of Ruanda-Urundi, to August, 1933 : report",,H.M. Stationery Office,1934,Department of Overseas Trade,,,,https://cir.nii.ac.jp/crid/1130282270428070784