Resource Type
Serial/Series Title
United States Bureau of Mines Reports
8
Information circular (United States. Bureau of Mines)
3
Annual Report of Research and Technologic Work on Coal
1
Fiscal Year 1948
1
Fiscal Year 1949
1
Fiscal Year 1950
1
Mineral technology (United States. Bureau of Mines)
1
Technical paper (United States. Bureau of Mines)
1