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
British Library and Open University,"Medieval realms : Britain, 1066-1500",Windows ed,Films for the Humanities & Sciences,1996,Sources in history,,0712343083,,https://cir.nii.ac.jp/crid/1130000796624991104