TY  - BOOK
T1  - A Geologic Reconnaissance of Parts of Beaverhead and Madision Counties, Montana
T2  - United States Depatments of the Interior. Geological survey bulletin ;
A1  - Klepper, M. R.
PP  - Washington, D.C
PB  - Government Printing Office
YR  - 1950
UL  - https://catalogo.bibliotecas.unlp.edu.ar/Record/dun.166737
OP  - 55
ER  -