Search Results
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1
Investigations relating to gold and silver by United States Geological Survey in 1907
Published: G.P.O., 1908Description: 136 pages : maps ; 23 cm.Government Document Book -
2
Strategic minerals investigations, 1943
Published: [U.S. Govt. Print. Office], 1944Description: 285 pages : illustrations, maps ; 24 cm + 29 maps (some color).Government Document Book