Yazar
jung tsu chang
2 cilt bulundu.
Cilt sonuçları
Case study on mountain environmental management
Jung-tsu Chang · International Centre for Integrated Mountain Development
66 sayfa · 1989
Mountain ecology / Nature conservation / Environmental protection
Tʻan tʻan tseng chʻan chieh yüeh
Shang-hai jung tʻan san chʻang kung jen hsüeh hsi cheng chih ching chi hsüeh hsiao tsu · Shang-hai jen min chʻu pan she
56 sayfa · 1974
Economic policy