共 28 条
[1]
Anderson J.R., 1990, POLICY RES SERIES WO, V8
[2]
[Anonymous], 1988, THEORY ENV POLICY, DOI DOI 10.1017/CBO9781139173513
[4]
Chisholm A., 1987, Land degradation. Problems and policies, P223
[5]
*FAO, 1986, HIGHL RECL STUDY ETH, V2
[6]
*FAO, 1986, HIGHL RECL STUDY ETH, V1
[7]
Hoff K., 1993, EC RURAL ORG
[8]
Holden S. T., 1998, Environment and Development Economics, V3, P105, DOI 10.1017/S1355770X98000060
[9]
HOLDEN ST, 1995, FORUM DEV STUDIES, V2, P247
[10]
Hurni H., 1985, Soil conservation manual for Ethiopia: a field guide for conservation implementation