Soil survey of the Socorro and Rio Puerco areas, New Mexico.

per Poulson, E. N. (Edwin Noel), 1895-
Washington [U.S. Govt. Print. Off., 1931

Soil survey, the Duncan area, Arizona, New Mexico

per Poulson, E. N. (Edwin Noel), 1895-
[Washington] U.S. Department of agriculture, 1950

Soil survey of Whatcom County Wash. /

per Poulson, E. N. (Edwin Noel), 1895-
[Washington, D.C.] : U.S. Dept. of Agriculture : for sale by Supt. of Docs, U.S. G.P.O, 1953

Soil survey, Sulphur Spring Valley area, Arizona

per Poulson, E. N. (Edwin Noel), 1895-
Washington, U.S. Govt. Print. Off. 1954

Soil survey, the Duncan area, Arizona, New Mexico

per Poulson, E. N. (Edwin Noel), 1895-
Washington] U.S. Bureau of Plant Industry, Soils, and Agricultural Engineering, 1950

Soil survey, Sulphur Spring Valley area, Arizona

per Poulson, E. N. (Edwin Noel), 1895-1979
Washington, D.C. : U.S. Govt. Print. Off. 1954

Soil survey of the Rincon area, New Mexico /

per Sweet, A. T. (Arthur T.), 1869-1916
Washington, D.C. : U.S. G.P.O., 1930

Soil survey, King county, Washington.

Washington, U.S. Govt. print. off., 1952

Soil survey of the Fort Sumner area, New Mexico /

per Sweet, A. T. (Arthur T.), 1869-1916
Washington : G.P.O., 1930

Soil survey, King county, Washington.

Washington, U.S. Govt. print. off., 1952

Soil survey, the Duncan area, Arizona -New Mexico /

[Washington, D.C.] : U.S. Department of Agriculture, Agricultural Research Administration Bureau of Plant Industry, Soils, and Agricultural Engineering and Soil Conservation Service, 1950

Soil survey, King county, Washington : [with list of literature cited.] /

Washington, D.C. : U.S. Govt. Print. Off., 1952

Soil survey of Van Zandt County, Texas.

per Goke, Alwin William, 1895-
Washington : [U.S. Govt. Print. Off., 1933