TY  - BOOK
AU  - Warner,J.Dean
AU  - Mardock,C.L.
AU  - Dahlin,D.C.
ED  - United States.
TI  - A columbium-bearing regolith on Upper Idaho Gulch, near Tofty, AK
T2  - Information circular
AV  - TN295TN490.N65 .U4 no. 9105
U1  - 622 s553.4/99�19 
PY  - 1986///]
CY  - [Avondale, Md.]
PB  - U.S. Dept. of the Interior, Bureau of Mines
KW  - Niobium ores
KW  - Alaska
KW  - Tofty Region
KW  - Ore-deposits
KW  - Geology
ER  -