Columbia subject headings:
Balance of payments--United States--History.
United States--Foreign economic relations.
United States--Foreign relations--To 1775.
Harvard subject headings:
Balance of payments--United States--History.
United States--Foreign economic relations.
United States--Foreign relations--To 1775.
Princeton subject headings:
Balance of payments--United States--History.
United States--Foreign economic relations.
United States--Foreign relations--To 1775.