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  1. The California Desert Conservation Area Plan, 1980 /
    By: United States.
    Publication info: Riverside, Calif. :The Bureau,1980.
    Contributed by: Bureau of Land Management (archive.org)
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  2. Report of an expedition down the Zuni and Colorado rivers,
    By: United States. - Sitgreaves, Lorenzo,
    Publication info: Washington,R. Armstrong, public printer,1853.
    Contributed by: Library of Congress
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