Distribution of principal kinds of soils : Orders, suborders and great groups. by Geological Survey (U.S.); United States. Soil Conservation Service

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Distribution of principal kinds of soils : Orders, suborders and great groups.

Distribution of principal kinds of soils : Orders, suborders and great groups / National Cooperative Soil Survey Classification of 1967 ; compiled by the Soil Conservation Service, 1967.

David Rumsey

Geological Survey (U.S.); United States. Soil Conservation Service

1970

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