TY  - BOOK
ED  - Mineral resources survey.
TI  - Directory of Montana oil and gas industry,
T2  - Montana. State bureau of mines and geology. Memoir
AV  - TN867 .M5 1943
U1  - 665.5058 
PY  - 1943///
CY  - Butte, Mont.
PB  - Montana school of mines
KW  - Petroleum industry and trade
KW  - Montana
KW  - Directories
KW  - Natural gas
N1  - At head of title: State of Montana. Bureau of mines and geology, Francis A. Thomson, director; Reproduced from type-written copy
ER  -