Columbia subject headings:
Great Britain--Foreign relations--1789-1820.
Great Britain--Foreign relations--1901-1936.
Great Britain--Foreign relations--19th century.
Harvard subject headings:
Great Britain--Foreign relations--1789-1820.
Great Britain--Foreign relations--1901-1936.
Great Britain--Foreign relations--19th century.
Princeton subject headings:
Great Britain--Foreign relations--1789-1820.
Great Britain--Foreign relations--1901-1936.
Great Britain--Foreign relations--19th century.