Columbia subject headings:
Cromwell, Oliver, 1599-1658.
Great Britain--History, Naval--Stuarts, 1603-1714.
Great Britain--History--Stuarts, 1603-1714.
Sea-power--Great Britain--History--17th century.
Harvard subject headings:
Cromwell, Oliver, 1599-1658
Great Britain--History, Naval--Stuarts, 1603-1714.
Great Britain--History--Stuarts, 1603-1714.
Sea-power--Great Britain--History--17th century.
Princeton subject headings:
Cromwell, Oliver, 1599-1658.
Great Britain--History, Naval--Stuarts, 1603-1714.
Great Britain--History--Stuarts, 1603-1714.
Sea-power--Great Britain--History--17th century.