Conservation Through Engineering Extract from the Annual Report of the Secretary of the Interior| author | Lane, Franklin K. |
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| download | pg31899.pdb (69K) |
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| language | English |
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| categories | Natural resources -- United States QE: Geology |
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| copyright status | Public domain in the USA. |
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| source | Project Gutenberg EBook #31899 2010-04-06 |
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