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William Mathis Koos
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Soil survey, Foard County, Texas
William Mathis Koos · U.S. Dept. of Agriculture, Soil Conservation Service in cooperation with Texas Agricultural Experiment Station
71 sayfa · 1964
Soil surveys / Soils / Maps
Soil survey, Crosby County, Texas
William Mathis Koos · U.S. Dept. of Agriculture, Soil Conservation Service
70 sayfa · 1966
Soil surveys / Soils / Maps