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
"Alfonso X, King of Castile and Leon and MacDonald, Robert A.","Espéculo : texto jurídico atribuido al rey de Castilla don Alfonso X, el Sabio",,Hispanic Seminary of Medieval Studies,1991,Spanish series,,0942260902,,https://cir.nii.ac.jp/crid/1130000795225350016