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Deserts on the march.

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Bibliographic Details
Main Author: Sears, Paul B. (Paul Bigelow), 1891-1990
Format: Book
Language:English
Published: Norman : University of Oklahoma Press, 1947.
Edition:[2d ed., rev.].
Subjects:
Agriculture > United States.
Natural resources > United States.
Agriculture > Economic aspects > United States.
United States > Economic conditions.
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