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 League of Nations. Secretariat and International Labour Organisation and Permanent Court of International Justice,Audited accounts for the twentieth financial period (1938),,League of Nations,1939,Series of League of Nations publications,,,,https://cir.nii.ac.jp/crid/1130282272395766528