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- [3] HOW US FARM MARKETING SYSTEM HELPS US TRADE IN FARM PRODUCTS FOREIGN AGRICULTURE, 1972, 10 (24): : 8 - &
- [4] WORLD MARKET IN FARM PRODUCTS IS WORKING - US EXPORTS RISE AND GLOBAL FARM TRADE STRENGTHENS FOREIGN AGRICULTURE, 1971, 9 (14): : 3 - &
- [7] Barriers to Internal Trade in Farm Products JOURNAL OF FARM ECONOMICS, 1939, 21 (02): : 686 - 688