Tungsten Deposits of Boulder County, Colorado
Subtitle: Prepared in Cooperation with the Colorado Metal Mining Fund and the Colorado Geological Survey Board : Strategic Minerals Investigations, 1940 (Pages 135-156).
Contributors: Lovering, T.S.
Series: U.S. Geological Survey bulletin -- 922F
Publisher: s.n
Published: 1940
Place of publication: S.l
Language: eng
Notes: 1