共 8 条
- [2] Koyck L. M., 1954, DISTRIBUTED LAGS INV
- [3] MAYER LV, 1968, 32 IOW STAT U CTR AG
- [4] NERLOVE M, 1956, J FARM ECONOMICS, V38
- [5] SCHMITZ A, 1968, CANADIAN J AGRICULTU, V16
- [6] *US DEP AGR, 1969, AGRICULTURE STATISTI
- [7] *US DEP AGR STAB, 1970, FINAL REPORT CONSERV
- [8] [No title captured]