共 24 条
[1]
BENTLEY SE, 1990, 631 USDA
[2]
Boehlje M., 1992, Agribusiness (New York), V8, P219, DOI 10.1002/1520-6297(199205)8:3<
[3]
219::AID-AGR2720080303>
[4]
3.0.CO
[5]
2-T
[6]
DALTON TJ, 2003, COST PRODUCTING MILK
[8]
FOLTZ J, 2004, IN PRESS AM J AG EC
[9]
Age-specific patterns of exit and entry in US farming, 1978-1997
[J].
REVIEW OF AGRICULTURAL ECONOMICS,
2003, 25 (01)
:168-186
[10]
GALE HF, 1990, SO J AGR EC, V20, P123