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 "Great Britain. Dept. of Overseas Trade and Rapp, T. C.","Economic conditions in Bulgaria (dated April, 1932) : report",,H.M.S.O.,1932,Department of Overseas Trade,,,,https://cir.nii.ac.jp/crid/1130282271977969920