A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Innoko gold-placer district, Alaska, with accounts of the central Kuskokwim valley and the Ruby Creek and Gold Hill placers, by A.G. Maddren. [U.S. Geological Survey Bulletin 410.]
Innoko gold-placer district, Alaska, with accounts of the central Kuskokwim valley and the Ruby Creek and Gold Hill placers, by A.G. Maddren. [U.S. Geological Survey Bulletin 410.]
Innoko gold-placer district, Alaska, with accounts of the central Kuskokwim valley and the Ruby Creek and Gold Hill placers, by A.G. Maddren. [U.S. Geological Survey Bulletin 410.]
1910
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color maps, tables
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Index, p. 85
List of illustrations, p. 5
Table of contents, p. 3
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