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ISBN: 9780521655354 出版年:1988 页码:298 Robert Harms Cambridge University Press
1. Introduction 2. The antecedents 3. The tactics 4 The strategies 5. The Drylands 6. The river 7. The core 8. The region 9. The traders 10. The troubles 11. The opportunities 12. The battle 13. Conclusion: nature and culture.
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