Columbia subject headings:
East-West trade.
Foreign trade regulation--Soviet Union.
Foreign trade regulation--United States.
Soviet Union--Commerce--United States.
United States--Commerce--Soviet Union.
Harvard subject headings:
East-West trade.
Soviet Union--Commerce--United States.
United States--Commerce--Soviet Union.
Princeton subject headings:
East-West trade.
Foreign trade regulation--Soviet Union.
Foreign trade regulation--United States.
Soviet Union--Commerce--United States.
United States--Commerce--Soviet Union.