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
"Turnbull, Stephen R. and Dennis, Peter","The walls of Constantinople, AD 324-1453",,Osprey,2004,Fortress,,184176759X,,https://cir.nii.ac.jp/crid/1130282269034885760