Mineral resource research, 1946-1947, by the Illinois State Geological Survey
By: by M.M. Leighton
Series: Circular / State Geological Survey -- 143; Circular (Illinois State Geological Survey) -- 143.
Publisher: State Geological Survey
Published: 1948
Place of publication: Urbana, Ill
Language: eng
Number of pages: 111
Subjects: Mines and mineral resources; Industrial Research; Illinois State Geological Survey
Notes: "Reprinted fom the Annual report of the Chief to the Director, Dept. of Registration and Education, for the fiscal year 1946-1947."