共 20 条
[2]
NONUSER RESOURCE VALUES
[J].
AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS,
1992, 74 (05)
:1133-1137
[4]
DASGUPTA P, 1990, P ANN C DEV EC WASH
[5]
Freeman A.Myrick., 1993, MEASUREMENT ENV RESO
[6]
GRANDSTAFF, 1986, EC VALUATION TECHNIQ, pCH7