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1
by Geiger, Luther C., Bruns, Herbert E., Chance, Billy R.
Washington] U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1968
Washington] U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1968
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2
by Wiedenfeld, C. C., McAndrew, J. Dewayne
[Washington] : [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], U.S. Soil Conservation Service ; 1968
[Washington] : [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], U.S. Soil Conservation Service ; 1968
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3
by Pringle, Fred B.
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1980
[Washington, D.C.?] : U.S. Dept. of Agriculture, Soil Conservation Service, 1980
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4
5
by Bynum, Otto W.
[Washington, D.C.?] : The Service, 1982
[Washington, D.C.?] : The Service, 1982
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6
by Blum, Ervin L.
[Washington, D.C.?] : The Service, 1982
[Washington, D.C.?] : The Service, 1982
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7
by Turner, August J.
[Washington, D.C.?] : The Service, 1982
[Washington, D.C.?] : The Service, 1982
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8