Classification of the Pennsylvanian strata of Illinois
By: R. M. Kosanke, [et al.]
Series: Illinois.  State Geological Survey.  Report of investigations 214.
Publisher: Illinois State Geological Survey
Published: 1960
Place of publication: Urbana
Language: eng
Number of pages: 84
Subjects: Geology -- Nomenclature.; Petrology -- Illinois.; Geology, Stratigraphic -- Pennsylvanian.
Notes: Bibliography: p. 57-60.