Becraft, George E. 1922-
Geology and mineral deposits of the Jefferson city quadrangle, Jefferson and Lewis and Clark counties, Montana / by George E. Becraft, Darrell M. Pinckney and Sam Rosenblum. -- Washington : United States Government Printing Office, 1963 - 100 p. + map. -- (Geological Survey Professional Paper ; 428).
Depósitos de minerales
Geología
Montana
553(786)
Geology and mineral deposits of the Jefferson city quadrangle, Jefferson and Lewis and Clark counties, Montana / by George E. Becraft, Darrell M. Pinckney and Sam Rosenblum. -- Washington : United States Government Printing Office, 1963 - 100 p. + map. -- (Geological Survey Professional Paper ; 428).
Depósitos de minerales
Geología
Montana
553(786)