Zinc-Lead-Copper Resources and General Geology of the Upper Mississippi Valley District
Subtitle: A Contribution to Economic Geology.
Contributors: Heyl, A.V.; Lyons, E.J.; Agnew, A.F.
Series: U.S. Geological Survey bulletin -- 1015G
Publisher: s.n
Published: 1954
Place of publication: S.l
Language: eng
Notes: 1