Illinois' mineral resources, mapped by geological survey, important in war
By: by M.M. Leighton
Series: Illinois State Geological Survey. Circular -- 87; Circular (Illinois State Geological Survey) -- 87.; Circular (Illinois State Geological Survey) -- no. 87.
Published: 1942
Place of publication: Urbana
Language: eng
Number of pages: 461
Subjects: Mines and mineral resources; Geology
Notes: Cover title.