Resource Type
Collection
Serial/Series Title
Farmers' bulletin (United States. Dept. of Agriculture)
11
United States Bureau of Mines Reports
9
United States Geological Survey Reports
4
U.S. Geological Survey professional paper
3
Information circular (United States. Bureau of Mines)
2
Report of investigations (United States. Bureau of Mines)
2
Technical paper (United States. Bureau of Mines)
2
47th Congress
1
Atomic Energy Commission Reports
1
GJBX
1
4 More