General Soil Map, Cochise County, Arizona United States. Soil Conservation Service Published: 1971 Total Pages: 52 Get eBook
Soil Survey of Willcox Area, Arizona, Parts of Cochise and Graham Counties Davie L. Richmond Published: 1976 Total Pages: 228 Get eBook
Soil Survey of Cochise County, Arizona, Northwestern Part William A. Svetlik Jr. Published: 2007 Total Pages: 318 Get eBook