Subsurface geology and coal resources of the Pennsylvanian system in De Witt, McLean, and Piatt Counties, Illinois
By: [by] Kenneth E. Clegg.
Contributors: Illinois. Dept. of Registration and Education.
Series: [Illinois. State Geological Survey] Circular; 473; Circular (Illinois State Geological Survey) ;; 473.
Publisher: Illinois State Geological Survey
Published: 1972
Place of publication: Urbana
Language: eng
Number of pages: 25
Subjects: Geology, Stratigraphic -- Pennsylvanian.; Geology -- Illinois.; Coal -- Geology -- Illinois.
Notes: Bibliography: p. 24-25.
Cover title.
At head of title: State of Illinois. Department of Registration and Education.
Part of illustrative matter in pocket.