Harrisburg (no. 5) coal reserves of southeastern Illinois
By: [by] M. E. Hopkins.
Series: Illinois. State Geological Survey. Circular; 431; Circular (Illinois State Geological Survey) ;; 431.
Publisher: Illinois State Geological Survey
Published: 1968
Place of publication: Urbana
Language: eng
Number of pages: 25
Subjects: Coal -- Illinois
Notes: Bibliography: p. 24-25.
Cover title.