共 50 条
- [24] FROM CONVENTIONAL TO INTEGRATED AGRICULTURE NETHERLANDS JOURNAL OF AGRICULTURAL SCIENCE, 1986, 34 (03): : 387 - 393
- [26] SCIENTIFIC PROGRESS IN AGRICULTURE, LAND REQUIREMENTS AND LAND-USE ADJUSTMENTS - DISCUSSION JOURNAL OF FARM ECONOMICS, 1958, 40 (05): : 1467 - 1469