共 7 条
[1]
BERRY L, 1984, ASSESSMENT DESERTIFI
[2]
ELHINNAWI E, 1982, NATURE ENV SERIES, V7
[3]
Ibrahim F., 1983, Development and Cooperation, P9
[5]
MABBUTT JA, 1984, ASSESSMENT STATUS TR
[6]
1982, UNESCO IPAL A4 TECHN
[7]
1981, INTERIM EVALUATION W