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 Brenan, T. V.","Report on economic and commercial conditions in Bulgaria, May, 1939",,H.M.S.O.,1939,Department of Overseas Trade,,,,https://cir.nii.ac.jp/crid/1130000797125464448