Showing 1 - 10 results of 10 for search 'Humphrey, R. R.', query time: 0.10s Refine Results
  1. 1
    Control Mesquite by Fire
    by Humphrey, R. R.
    Published 1952
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  2. 2
    Know Your Range Grasses
    by Humphrey, R. R.
    Published 1953
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  3. 3
    Brush Invasion is Problem on Arizona Ranges
    by Humphrey, R. R.
    Published 1957
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  4. 4
    Forage and Water
    by Humphrey, R. R.
    Published 1959
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  5. 5
    Climate and Soils of Northeastern Brazil
    by Humphrey, R. R.
    Published 1966
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  6. 6
    Arizona Range Resources II. Yavapai County: A Study in Range Condition
    by Humphrey, R. R.
    Published 1964
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  7. 7
    How is Your Range Land?
    by Humphrey, R. R., Brown, A. L.
    Published 1950
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  8. 8
    Growth Rings of Sagebrush Reveal Rainfall Records
    by Ferguson, C. W., Humphrey, R. R.
    Published 1959
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  9. 9
    Scientists Seeking to Learn More About the Creosotebush
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  10. 10
    ECOLOGY OF THE CREOSOTEBUSH LARREA TRIDENTATA (DC.) COV.
    Other Authors: “...Humphrey, R. R....”
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