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 United States. Army Map Service,"World (Europe) 1:1,000,000",,"Army Map Service (LU), Corps of Engineers, U.S. Army",,,,,,https://cir.nii.ac.jp/crid/1130282269337980544