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Subjects
Gold miners, Gold mines and mining, Placer mining, MinersPlaces
United StatesShowing 1 featured edition. View all 1 editions?
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Book Details
Edition Notes
Bibliographical foot-notes.
Series title in part also on t.p.
Photoprinted.
In cooperation with the U.S. Bureau of Mines. cf. p. [v]
Issued also in Technology, employment, and output per man: copper, iron, placer gold (National Research Project on reemployment opportunities and recent changes in industrial techniques) [1937-40]
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Feedback?January 21, 2010 | Edited by WorkBot | add subjects and covers |
December 9, 2009 | Created by WorkBot | add works page |