Iowa Geological Survey Annual Report

Article Title

Mineral Production in Iowa in 1939 and 1940

Authors

H. Garland Hershey

Rights

Material in the public domain. No restrictions on use.

Recommended Citation

Hershey, H. Garland (1941) "Mineral Production in Iowa in 1939 and 1940," Iowa Geological Survey Annual Report: Vol. 38: p. 423-456.
Available at: http://ir.uiowa.edu/igsar/vol38/iss1/6