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
"Duckett, Eleanor Shipley",Carolingian portraits : a study in the ninth century,,University of Michigan Press,1969,Ann Arbor paperbacks,,,,https://cir.nii.ac.jp/crid/1130000796317250944