994 resultados para United States. Soil Conservation Service.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Explains principles of contour plowing; stresses the need for soil conservation and increased food production as part of the struggle to win World War II.
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"Prepared for the U. S. Department of Agricluture, Soil Conservation Service."
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"Progress report on Illinois watersheds."--Cover.
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Includes statistical tables.
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"Reviewed and approved for reprinting September 1993"--P. [2] of cover.
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Caption title.
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Chiefly illustrations.
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"Issued June 1942."
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Cover title.
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In cooperation with Ohio Agricultural Research and Development Center, Wooster, Ohio.
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Issued Sept. 1979.
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"U.S. Department of Agriculture, Soil Conservation Service."