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Anasazi America: Seventeen Centuries on the Road from Center Place
hundred years, the Chacoans society collapsed dramatically in the twelfth century in a mere forty years. David E. Stuart...... more |
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Dryland Management: Economic Case Studies
Drylands are a sizeable part of the world’s potentially arable land. They vary from the hyper-arid r... more |
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Economics of Dryland Management
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