Columbia subject headings:
English language--Middle English, 1100-1500--Dialects.
English poetry--Middle English, 1100-1500--History and criticism.
Epic poetry, English--History and criticism.
Harvard subject headings:
Princeton subject headings:
English language--Middle English, 1100-1500--Dialects.
English poetry--Middle English, 1100-1500--History and criticism.
Epic poetry, English--History and criticism.