Columbia subject headings:
English literature--Middle English, 1100-1500--Bibliography.
English literature--Middle English, 1100-1500--History and criticism.
Harvard subject headings:
English literature--Middle English, 1100-1500--Bibliography
English literature--Middle English, 1100-1500--History and criticism
English literature--Middle English, 1100-1500--Manuscripts--Catalogs.
Reference works.
Princeton subject headings:
English literature--Middle English, 1100-1500--Bibliography.
English literature--Middle English, 1100-1500--History and criticism.