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
"Billings, Anna Hunt",A guide to the Middle English metrical romances dealing with English and Germanic legends and with the cycles of Charlemagne and of Arthur,,Russell & Russell,1967,Yale studies in English,,,,https://cir.nii.ac.jp/crid/1130282271277219840