Columbia subject headings:
Harvard subject headings:
Great Britain--Foreign relations--20th century.
Great Britain--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Great Britain.
Princeton subject headings:
Great Britain--Foreign relations--20th century.
Great Britain--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Great Britain.