Columbia subject headings:
Soviet Union--Foreign economic relations--United States--Sources.
Soviet Union--Foreign economic relations--United States.
United States--Foreign economic relations--Soviet Union--Sources.
United States--Foreign economic relations--Soviet Union.
Harvard subject headings:
Soviet Union--Foreign economic relations--United States--Sources.
Soviet Union--Foreign economic relations--United States.
United States--Foreign economic relations--Soviet Union--Sources.
United States--Foreign economic relations--Soviet Union.
Princeton subject headings:
Soviet Union--Foreign economic relations--United States--Sources.
Soviet Union--Foreign economic relations--United States.
United States--Foreign economic relations--Soviet Union--Sources.
United States--Foreign economic relations--Soviet Union.