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
"Morris, Richard",Sir Gawayne and the Green Knight : an alliterative romance-poem (ab. 1360 A.D.),"2nd ed., rev",Published for the Early English Text Society by N. Trübner,1869,Early English Text Society original series,,,,https://cir.nii.ac.jp/crid/1130000798018799232