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orville e krause
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Airphoto use in resource management
Orville E. Krause · Economic Research Service, U.S. Dept. of Agriculture; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
26 sayfa · 1969
Aerial photography / Aerial photography in agriculture
Cropland trends since World War II
Orville E. Krause · Economic Research Service, U.S. Dept. of Agriculture; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
15 sayfa · 1970
Rural Land use / Agriculture