TY  - BOOK
AU  - Stout,Koehler S.
TI  - Operating ideas for small mines
T2  - Montana. Bureau of Mines and Geology. Miscellaneous contribution
AV  - TN275 .S814
U1  - 622.33 
PY  - 1956///
CY  - [Butte]
KW  - Mineral industries
KW  - Montana
KW  - Mining engineering
N1  - Bibliography: p. 81
ER  -