Diggers in the Earth| author | Tappan, Eva March |
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| download | pg24762.pdb (250K) |
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| language | English |
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| categories | Readers Mines and mineral resources PE: English language TN: Mining engineering. Metallurgy |
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| copyright status | Public domain in the USA. |
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| source | Project Gutenberg EBook #24762 2008-03-06 |
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