The Illinois State geological survey in war mineral research
By: by M.M. Leighton, chief ...
Contributors: Leighton, Morris M. (Morris Morgan), 1887-1971
Series: Illinois State Geological Survey. Circular -- 121; Circular (Illinois State Geological Survey) -- 121.
Published: 1945
Place of publication: Urbana, Ill
Language: eng
Number of pages: 23
Subjects: Mines and mineral resources; Illinois State Geological Survey
Notes: "From the Annual report of the chief to the director, Department of registration and education for fiscal year 1944-45."