Strategic and critical minerals
Subtitle: a guide for Oregon prospectors
By: by Lloyd W. Staples
Series: Oregon. State Dept. of Geology and Mineral Industries. GMI short paper -- no. 8; GMI short paper -- no. 8.
Published: 1942
Place of publication: Portland, Or.]
Language: eng
Number of pages: 27
Subjects: Mines and mineral resources; Strategic materials