A. E. Kocher

Soil survey, Deschutes area, O

Soil survey, Deschutes area, Oregon

1958

Soil survey of the Grande Rond

Soil survey of the Grande Ronde valley area, Oregon

1930

Soil survey, the Coachella Val

Soil survey, the Coachella Valley area, California

1928

Soil survey of Clackamas Count

Soil survey of Clackamas County, Oregon

1926

Soil survey of Josephine County, Oregon

1923

Soil survey of the Wenatchee a

Soil survey of the Wenatchee area, Washington

1922

Soil survey of Benton County,

Soil survey of Benton County, Washington

1921