Mineral resource research and activities of the State Geological Survey, 1951-1952
Series: Illinois State Geological Survey. Circular -- no. 181; Circular (Illinois State Geological Survey) -- no. 181.; Circular (Illinois State Geological Survey) -- 181.
Published: 1952
Place of publication: Urbana
Language: eng
Number of pages: 58
Subjects: Mines and mineral resources; Geological surveys
Notes: "Preprinted from the annual report of the Chief to the Director, Dept. of Registration and Education, for fiscal year 1951-1952.