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Environmental Change and Dryland Management in Machakos District, Kenya, 1930-90
Mary Tiffen
其他書名
Farming and Incomes Systems
出版Overseas Development Institute, 1992
ISBN08500317619780850031768
URLhttp://books.google.com.hk/books?id=CfnCQgAACAAJ&hl=&source=gbs_api