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 "Bull, Marcus Graham","Eyewitness and crusade narrative : perception and narration in accounts of the second, third and fourth crusades",,Boydell Press,2018,Crusading in context,,9781783273355,,https://cir.nii.ac.jp/crid/1130000798364045696