Soil survey of the Santa Cruz area, California /

Bibliography: p. 90.

Soil survey of the Suisun area, California /

United States Department of Agriculture, Bureau of Chemistry and Soils in cooperatio with the University of California Agricultural Experiment Station.

Soil survey of the Willits area, California /

"Advance sheets--Field Operations of the Bureau of Soils, 1918."

Soil survey, Auburn area, California /

"In cooperation with the University of California Agricultural Experiment Station."

Soil survey of the Napa area, California /

In cooperation with the University of California Agricultural Experiment Station."

Soil survey of the Clear Lake area, California.

In cooperation with the University of California Agricultural Experiment Station.

Soil survey of the lower Salinas Valley, California /

"Reprinted from the Report on field operations of the Bureau of Soils for 1901."--Cover.

Soil survey of the Sacramento-San Joaquin Delta area, California /

"Report no. 21."

Soil survey of the Visalia area, California /

R. Earl Stories, in charge, and Bruce C. Owen, University of California, and E.J. Carpenter, M.H. Layton and W.J. Leighty, Soil Survey Division, Bureau of Chemistry and Soils, United States Department of Agriculture.

Soil survey of the Modesto-Turlock area, California, with a brief report on a reconnaissance soil survey of the region east of the area,

Mode of access: Internet.

Soil survey of the Yuma-Wellton area, Arizona-California /

Cover title.

Soil survey manual,

"Effective 1952, the Soil Survey was transferred from the former Bureau of Plant Industry, Soils, and Agricultural Engineering to the Soil Conservation Service."

Soil survey--Desert Experimental Range, Utah /

"April 1997."

Soil survey of the Brawley area, California /

U.S. Department of Agriculture, Bureau of Soils in cooperation with the University of California Agricultural Experiment Station.

Soil survey of the Coalinga area, California /

"Literature cited": p. 91.