Resource Type
Serial/Series Title
Farmers' bulletin (United States. Dept. of Agriculture)
13
United States Bureau of Mines Reports
8
Information circular (United States. Bureau of Mines)
2
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