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. Committee of Experts for the Progressive Codification of International Law,"Report to the Council of the League of Nations on the questions which appear ripe for international regulation (questionnaires nos. 1 to 7.), adopted by the Committee at its Third Session, held in March-April, 1927",,League of Nations,1927,Publications of the League of Nations,,,,https://cir.nii.ac.jp/crid/1130282271804120448