Geologic disturbances in Illinois coal seams
By: W. John Nelson.
Series: Circular / Illinois State Geological Survey ;; 530; Circular (Illinois State Geological Survey) ;; 530.
Publisher: Illinois State Geological Survey
Published: 1983
Place of publication: Champaign, Ill
Language: eng
Number of pages: 47
Subjects: Coal -- Geology -- Illinois.; Geology, Stratigraphic -- Pennsylvanian.
Notes: Bibliography: p. 46-47.