994 resultados para United States. Soil Conservation Service.
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Mode of access: Internet.
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"September 1971"--P. 21.
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Prepared by the National 4-H Developmental Committee on Conservation of Natural Resources.
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Mode of access: Internet.
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"Supersedes PA-392, Small watershed projects under the Watershed protection and flood prevention act."
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"May 1964"--P. [3] of cover.
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"Issued May 1963, slightly revised May 1968."
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"Issued January 1972."
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Mode of access: Internet.
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Title in right upper margin: Important farmlands maps.
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"March 1988."
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Covers South Jersey.
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At head of title: U. S. Dept. of Agriculture. Soil Conservation Service.
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Includes indexed "Status of watersheds."