共 50 条
- [4] SOIL CONSERVATION IN THE UNITED-STATES - POLICY AND PLANNING - STEINER,FR PROFESSIONAL GEOGRAPHER, 1992, 44 (02): : 242 - 243
- [5] POLICY TOOLS FOR UNITED-STATES AGRICULTURE TEXAS AGRICULTURAL EXPERIMENT STATION BULLETIN, 1986, (1548): : 1 - 73
- [7] POLICY IMPLICATIONS OF VERTICAL INTEGRATION IN UNITED-STATES AGRICULTURE JOURNAL OF FARM ECONOMICS, 1957, 39 (02): : 300 - 312
- [8] ROLE OF AGRICULTURE IN A MODERN UNITED-STATES TARIFF POLICY JOURNAL OF FARM ECONOMICS, 1956, 38 (02): : 320 - 323