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 boundary : United States-Venezuela, December 16, 1980",,U. S. Bureau of Intelligence and Research. Office of the Geographer,,Limits in the seas,,,,https://cir.nii.ac.jp/crid/1130000797387192704