United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of the Interior, Bureau of Indian Affairs, Arizona Agricultural Experiment Station, and California Agricultural Experiment StationUnited States Dept. of Agriculture Soil Conservation Service[1986]
[by] John A. Williams and Truman C. Anderson, Jr. Soils surveyed by Truman C. Andeson, Jr. and others.U. S. Department of Agriculture, Forest Service and Soil Conservation Service1967.<631.47-Us68sv>