Soil survey, Bennett County, South Dakota /

by Chamberlin, E. G. (Earl G.), Radeke, Robert E.
[Washington] : U.S. Soil Conservation Service : [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971

Soil survey of Beadle County, South Dakota /

by Heil, Dennis M.
[Washington] : The Service, 1979