Browsing by Author "Welker, Anthony J."
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Item Gray County, Texas, soil survey of(United States Department of Agriculture, Soil Conservation Service, 1966) Williams, Jack C.; Welker, Anthony J.Item Hansford County, Texas, soil survey of(United States Department of Agriculture, Soil Conservation Service, 1960) Welker, Anthony J.Item Hemphill County, Texas, soil survey of(United States Department of Agriculture, Soil Conservation Service, 1974) Williams, Jack C.; Welker, Anthony J.; Wheeler, Frankie F.; McEwen, Harry F.