Columbia subject headings:
Great Britain--Politics and government--1642-1649--Sources.
Great Britain. Parliament--History--Sources.
Harvard subject headings:
England and Wales. Parliament--History--Sources.
Great Britain--Politics and government--1642-1649--Sources.
Great Britain. Parliament--History--Sources.
Princeton subject headings:
Great Britain--Politics and government--1642-1649--Sources.
Great Britain. Parliament--History--Sources.