Columbia subject headings:
Cromwell, Oliver, 1599-1658.
Generals--Great Britain--Biography.
Great Britain--History--Puritan Revolution, 1642-1660.
Heads of state--Great Britain--Biography.
Harvard subject headings:
Cromwell, Oliver, 1599-1658
Generals--Great Britain--Biography
Great Britain--History--Puritan Revolution, 1642-1660
Heads of state--Great Britain--Biography.
Princeton subject headings:
Cromwell, Oliver, 1599-1658.
Great Britain--History--Commonwealth and Protectorate, 1649-1660.
Great Britain--Kings and rulers--Biography.