TY  - BOOK
AU  - Hill,James M.
AU  - Lindgren,Waldemar
TI  - The mining districts of the western United States,
T2  - United States Geological survey. Bulletin
AV  - QE75 .B9 no. 507
PY  - 1912///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Mines and mineral resources
KW  - United States
ER  -