Columbia subject headings:
English literature--Middle English, 1100-1500--History and criticism.
Great Britain--Historiography.
Great Britain--History--Lancaster and York, 1399-1485--Sources.
Harvard subject headings:
English literature--Middle English, 1100-1500--History and criticism
Great Britain--Historiography.
Great Britain--History--Lancaster and York, 1399-1485--Sources.
Princeton subject headings:
English literature--Middle English, 1100-1500--History and criticism.
Great Britain--History--Historiography.
Great Britain--History--Lancaster and York, 1399-1485--Sources.