Resource Type
Serial/Series Title
United States Bureau of Mines Reports
9
Farmers' bulletin (United States. Dept. of Agriculture)
4
Bulletin (United States. Bureau of Mines)
2
Contributions to economic geology
2
U.S. Geological Survey bulletin
2
United States Geological Survey Reports
2
Information circular (United States. Bureau of Mines)
1
Technical paper (United States. Bureau of Mines)
1
Country
States
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