共 50 条
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- [2] THE IMPACT OF TECHNOLOGICAL-CHANGE ON AMERICAN-AGRICULTURE, 1862-1962 - DISCUSSION JOURNAL OF ECONOMIC HISTORY, 1962, 22 (04): : 592 - 599
- [3] RESEARCH ON THE ECONOMICS OF TECHNOLOGICAL-CHANGE IN AMERICAN-AGRICULTURE JOURNAL OF FARM ECONOMICS, 1960, 42 (04): : 735 - 754
- [4] THE IMPACT OF TECHNOLOGICAL-CHANGE ON AMERICAN-AGRICULTURE, 1862-1962 JOURNAL OF ECONOMIC HISTORY, 1962, 22 (04): : 578 - 591
- [6] TECHNOLOGICAL-CHANGE AND REGIONAL SHIFTS IN AMERICAN MANUFACTURING PROFESSIONAL GEOGRAPHER, 1979, 31 (01): : 45 - 54
- [8] RESOURCES NEEDED IN AMERICAN-AGRICULTURE - DISCUSSION JOURNAL OF FARM ECONOMICS, 1957, 39 (05): : 1086 - 1089
- [9] THE POVERTY PROBLEM IN AMERICAN-AGRICULTURE - DISCUSSION JOURNAL OF FARM ECONOMICS, 1964, 46 (02): : 436 - 439