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
"Donnell, Clayton. and Delf, Brian.","The German fortress of Metz, 1870-1944",,Osprey,2008,Fortress,,9781846033025,,https://cir.nii.ac.jp/crid/1130000798154668288