982 resultados para Youth Conservation Corps (U.S.)


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"This work was supported by a grant from the National Science Foundation."

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"April 23, 1962."

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"SW-779"--p. 2 of cover.

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EPA pub. number SW-10P, per NSCEP's publication title list.

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At head of title: U.S. Dept. of the Interior.

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"Sponsored by the Resource Conservation Committee, the Interagency Committee."

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Bibliographical footnotes.

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At head of title: War Department, Corps of Engineers, Mississippi River Commission.