Klepper, Montis Ruhl 1915-
Geology of the southern Elkhorn mountains Jefferson and Broadwater Counties, Montana / by M.R. Klepper, R.A. Weeks and E.T. Ruppel. -- Washington : United States Government Printing Office, 1957 - 82 p. + 1 map. -- (Geological Survey Professional Paper ; 292).
Geología
Montana
55(786)
Geology of the southern Elkhorn mountains Jefferson and Broadwater Counties, Montana / by M.R. Klepper, R.A. Weeks and E.T. Ruppel. -- Washington : United States Government Printing Office, 1957 - 82 p. + 1 map. -- (Geological Survey Professional Paper ; 292).
Geología
Montana
55(786)