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
"Burns, Robert Ignatius and Scott, S. P. (Samuel Parsons) and Alfonso X, King of Castile and Leon",Medieval government : the world of kings and warriors,,University of Pennsylvania Press,2001,Middle Ages series,,081221739X,,https://cir.nii.ac.jp/crid/1130282269091039232