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 U. S. Bureau of Intelligence and Research. Office of the Geographer,Maritime boundaries : costa Rica - Panama,,U. S. Bureau of Intelligence and Research. Office of the Geographer,1982,Limits in the seas,,,,https://cir.nii.ac.jp/crid/1130282271113223424