共 29 条
[2]
BARROWS R, 1987, J SOIL WATER CONSERV, V42, P232
[3]
Belknap J., 1988, North Central Journal of Agricultural Economics, V10, P13, DOI 10.2307/1349232
[4]
BULTENA GL, 1983, J SOIL WATER CONSERV, V38, P281
[5]
CHRISTENSEN LA, 1983, J SOIL WATER CONSERV, V38, P156
[6]
CROSSON P, 1982, J SOIL WATER CONSERV, V37, P27
[8]
ERVIN CA, 1982, LAND ECON, V58, P277, DOI 10.2307/3145937
[9]
ERVIN DE, 1981, 8110 U MISS COL DEP