Columbia subject headings:
Harvard subject headings:
Cromwell, Oliver, 1599-1658
Generals--Great Britain--Biography
Great Britain--History--Commonwealth and Protectorate, 1649-1660--Biography.
Heads of state--Great Britain--Biography.
Princeton subject headings:
Cromwell, Oliver, 1599-1658.
Generals--Great Britain--Biography.
Great Britain--History--Commonwealth and Protectorate, 1649-1660--Biography.
Heads of state--Great Britain--Biography.