Columbia subject headings:
Great Britain--History--Civil War, 1642-1649--Causes.
Great Britain--Politics and government--1603-1649.
Harvard subject headings:
Great Britain--History--Civil War, 1642-1649--Causes.
Great Britain--Politics and government--1603-1649.
Princeton subject headings:
Great Britain--History--Civil War, 1642-1649--Causes.
Great Britain--Politics and government--1603-1649.