共 13 条
[2]
BOCKSTAEL NE, 1984, EPA CR811043010 U MA
[4]
HANEMANN W, 1982, 241 U CAL GIANN F AG
[5]
KEALY MJ, 1986, AM J AGR ECON, V69, P660
[7]
McConnell K. E., 1985, HDB NATURAL RESOURCE
[8]
Smith V.K., 1986, MEASURING WATER QUAL