Columbia subject headings:
Chaucer, Geoffrey, -1400.
English literature--Middle English, 1100-1500--History and criticism.
Harvard subject headings:
Chaucer, Geoffrey, -1400
English literature--Middle English, 1100-1500--History and criticism
Princeton subject headings:
Chaucer, Geoffrey, -1400--Criticism and interpretation.
English literature--Middle English, 1100-1500--History and criticism.