共 50 条
- [1] Knowledge generation and technical change - Institutional innovation in agriculture [J]. KNOWLEDGE GENERATION & TECHNICAL CHANGE: INSTITUTIONAL INNOVATION IN AGRICULTURE, 2001, 19 : XI - XXII
- [2] NEW ROOTS FOR AMERICAN-AGRICULTURE [J]. JOURNAL OF SOIL AND WATER CONSERVATION, 1981, 36 (06) : 320 - 325
- [3] WERE INVENTING A NEW AMERICAN-AGRICULTURE [J]. AGRICULTURAL ENGINEERING, 1986, 67 (02): : 12 - 14
- [4] RESEARCH ON THE ECONOMICS OF TECHNOLOGICAL-CHANGE IN AMERICAN-AGRICULTURE [J]. JOURNAL OF FARM ECONOMICS, 1960, 42 (04): : 735 - 754
- [5] REGIONAL PATTERNS OF TECHNOLOGICAL-CHANGE IN AMERICAN-AGRICULTURE [J]. JOURNAL OF FARM ECONOMICS, 1958, 40 (02): : 196 - 207
- [6] THE NEW ERA OF AMERICAN-AGRICULTURE - UNCERTAINTIES AND CONSTRAINTS [J]. VIRGINIA POLYTECHNIC INSTITUTE EXTENSION SERVICE-VIRGINIA AGRICULTURAL ECONOMICS, 1981, (324): : 1 - 4
- [7] REGIONAL PATTERNS OF TECHNOLOGICAL-CHANGE IN AMERICAN-AGRICULTURE - DISCUSSION [J]. JOURNAL OF FARM ECONOMICS, 1958, 40 (02): : 222 - 224
- [8] THE IMPACT OF TECHNOLOGICAL-CHANGE ON AMERICAN-AGRICULTURE, 1862-1962 [J]. JOURNAL OF ECONOMIC HISTORY, 1962, 22 (04): : 578 - 591
- [10] THE IMPACT OF TECHNOLOGICAL-CHANGE ON AMERICAN-AGRICULTURE, 1862-1962 - DISCUSSION [J]. JOURNAL OF ECONOMIC HISTORY, 1962, 22 (04): : 592 - 599