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James Loyce Gray
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Soil survey, Cross County, Arkansas
James Loyce Gray · U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]
61 sayfa · 1968
Soil surveys / Soils / Maps / Soil-surveys
Soil survey of Crittenden County, Arkansas
James Loyce Gray · Soil Conservation Service : for sale by Supt. of Docs., U.S. Govt. Print. Off.
49 sayfa · 1974
Soil surveys / Soils / Maps
Soil survey of Lee County, Arkansas
James Loyce Gray · Soil Conservation Service
94 sayfa · 1977
Soil surveys / Soils / Maps / Sols / Cartes
Soil survey
James Loyce Gray, Vernon R. Catlett, United States. Soil Conservation Service, Knoxville. Agricultural Experiment Station University of Tennessee · U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
81 sayfa · 1966
Soils / Maps / Soil surveys