Columbia subject headings:
Harvard subject headings:
English language--Middle English, 1100-1500--Congresses.
English literature--Middle English, 1100-1500--History and criticism--Congresses.
English philology--Middle English, 1100-1500--Congresses.
Princeton subject headings:
English language--Middle English, 1100-1500--Congresses.
English literature--Middle English, 1100-1500--History and criticism--Congresses.
English philology--Middle English, 1100-1500--Congresses.