共 6 条
[1]
ERIKSEN MH, 1976, USE LAND RESERVES CO
[2]
GARDNER B, 1987, EC AGR POLICY
[3]
Love H. A., 1990, Western Journal of Agricultural Economics, V15, P272
[4]
Rausser Gordon., 1984, W J AGR EC, V9, P215
[5]
TWEETEN L, 1970, F FARM POLICY
[6]
WEISGERBER P, 1969, PRODUCTIVITY DIVERTE