Columbia subject headings:
Commercial policy.
East-West trade.
Soviet Union--Commercial policy.
United States--Commercial policy.
Harvard subject headings:
East-West trade.
Mutual security program, 1951-
Soviet Union--Commercial policy.
United States--Commercial policy.
Princeton subject headings:
East-West trade.
Mutual security program, 1951-
Soviet Union--Commercial policy.
United States--Commercial policy.