共 78 条
[71]
[No title captured]
[72]
1954, UNASYLVA, V8, P129
[73]
1976, TIMBER B EUROPE S3, V24
[74]
1963, WORLD FOREST INVENTO
[75]
1948, UNASYLVA, V2, P161
[76]
1980, FAO PRODUCTION YB
[77]
1960, UNASYLVA, V14, P131
[78]
1977, DESERTIFICATION ITS