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 and League of Nations. Advisory and Technical Committee for Communications and Transit,Note by the Committee of experts placed at the disposal of the Polish government by the League of Nations on the drainage of the marshes of Polesia,,League of Nations,1927,Publications of the League of Nations,,,,https://cir.nii.ac.jp/crid/1130282271959880320