Soil Survey of the Big Valley, California Ebenezer Bliss Watson Published: 1924 Total Pages: 48 Get eBook
Soil Survey of the Alturas Area, California Eugene Johnson Carpenter Published: 1936 Total Pages: 76 Get eBook
Soil Survey of Lake County, California David William Smith Published: 1989 Total Pages: 480 Get eBook
Field Operations of the Division of Soils United States. Bureau of Soils Published: 1925 Total Pages: 1728 Get eBook
Report of the Agricultural Experiment Station of the University of California Published: 1920 Total Pages: 754 Get eBook
