Nonfuel mineral model directory /
by staff, Bureau of Mines.
- [Avondale, Md.] : U.S. Dept. of the Interior, Bureau of Mines, [1984].
- 40 p.
- Bureau of Mines information circular 1984 ; 8966. .
83-600342
Mines and mineral resources--Mathematical models--Directories.
622 s
83-600342
Mines and mineral resources--Mathematical models--Directories.
622 s