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Sols
Soil surveys
76
Soils
76
Études pédologiques
67
Soil-surveys
3
Bodenkunde
2
Classification
2
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1
2
5
by Diedrick, Raymond T.
Washington] U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1972
Washington] U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1972
Government Document
Book
6
by Wing, Gordon N.
Washington : U.S. Dept. of Agriculture, Soil Conservation Service, 1975
Washington : U.S. Dept. of Agriculture, Soil Conservation Service, 1975
Government Document
Book
7
8
by Lueth, Robert A.
Washington] Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974
Washington] Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974
Government Document
Book
9
10
14
15
16
by Meland, Arvid C.
[Washington, D.C.] : [National Cooperative Soil Survey], 1979
[Washington, D.C.] : [National Cooperative Soil Survey], 1979
Government Document
Book
18