Columbia subject headings:
English language--Middle English, 1100-1500--Grammar.
English literature--Middle English, 1100-1500.
Harvard subject headings:
English language--Middle English, 1100-1500--Grammar
English literature--Middle English, 1100-1500
Princeton subject headings:
English language--Middle English, 1100-1500--Grammar.
English literature--Middle English, 1100-1500.