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
"Keen, Maurice Hugh",The laws of war in the late Middle Ages,,"Routledge & K. Paul,Toronto University Press",1965,Studies in political history,,,,https://cir.nii.ac.jp/crid/1130282273140641152