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
"Falkner, Roland P.",Statistical documents of the Middle Ages,,Published for the Department of History of the University of Pennsylvania by the University of Pensylvania Press,,Translations and reprints from the original sources of European history,,,,https://cir.nii.ac.jp/crid/1130282271124903680