Soil Survey of Tucson-Avra Valley Area, Arizona Frederick W. Gelderman Published: 1972 Total Pages: 118 Get eBook
Soil Survey of Tucson-Avra Valley Area, Arizona Frederick W. Gelderman Published: 1972 Total Pages: 70 Get eBook
Soil Survey of Pima County, Arizona, Eastern Part Christopher C. Cochran Published: 2003 Total Pages: 362 Get eBook
Soil Survey of the Tucson Area, Arizona Francis Ogden Youngs Published: 1936 Total Pages: 76 Get eBook
