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3
Contributions to economic geology (short papers and prelimi..
United States congressional serial set ; serial set no. 7362;House document / 65th Congress, 2nd session. House ; no. 605
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4
Contributions to economic geology (short papers and prelimi..
United States congressional serial set ; serial set no. 5979;House document / 61st Congress, 3rd session. House ; no. 1031
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5
Contributions to economic geology, 1908. Part I. -- Metals ..
United States congressional serial set ; serial set no. 5463;House document / 60th Congress, 2nd session. House ; no. 1523