TY  - BOOK
AU  - Klepper,M.R.
TI  - A Geologic Reconnaissance of Parts of Beaverhead and Madision Counties, Montana
T2  - United States Depatments of the Interior. Geological survey bulletin ; 
PY  - 1950///
CY  - Washington, D.C : 
PB  - Government Printing Office, 
ER  -