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
"Willard, James F. and Morris, William Alfred",Central and prerogative administration,,Mediaeval Academy of America,1940,Mediaeval Academy of America publication,,,,https://cir.nii.ac.jp/crid/1130282273266863232