共 45 条
- [11] *FOOD AGR ORG, 1961, AGROSTAT
- [12] HYBRID CORN - AN EXPLORATION IN THE ECONOMICS OF TECHNOLOGICAL-CHANGE [J]. ECONOMETRICA, 1957, 25 (04) : 501 - 522
- [13] HAYAMI Y, 1985, AGR DEV INT PERSPECT, P367
- [14] HILL PR, 1994, EVOLUTION HIST TILL
- [15] Houghton J.T., 1992, CLIMATE CHANGE 1992
- [16] HOWE C, 1991, BENEFIT COST ANAL WA, V2
- [17] *INT PAN CLIM CHAN, 1994, CLIM SCEN SOC PROJ I
- [18] James L.D., 1971, EC WATER RESOURCES P
- [20] KAISER HM, 1994, P9410 PUBL U MINN