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
"Erdmann, Carl and Baldwin, Marshall Whithed and Goffart, Walter A.",The origin of the idea of crusade,,Princeton University Press,2019,Princeton legacy library,,9780691615639,,https://cir.nii.ac.jp/crid/1130570839759362851