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
"Langland, William and Skeat, Walter W. (Walter William)","Parallel extracts from forty-five manuscripts of Piers Plowman, with notes upon their relation to the society's three-text edition of this poem",,Greenwood Press,1969,Early English Text Society original series,,,,https://cir.nii.ac.jp/crid/1130000794874086400