Soil Survey of Erath County, Texas United States. Soil Conservation Service Published: 1973 Total Pages: 182 Get eBook
Field Operations of the Division of Soils United States. Bureau of Soils Published: 1925 Total Pages: 1728 Get eBook
Soil Survey Laboratory Data and Descriptions for Some Soils of Texas United States. Soil Conservation Service Published: 1976 Total Pages: 364 Get eBook