Fossil peat of the Illinois basin
Subtitle: a guide to the study of coal balls of Pennsylvanian age
By: Tom L. Phillips, Matthew J. Avcin, Dwain Berggren.
Contributors: Avcin, Matthew J., joint author.; Berggren, Dwain, joint author.
Series: Educational series ; 11; Educational series (Illinois State Geological Survey) ;; 11.
Publisher: Illinois State Geological Survey
Published: 1976
Place of publication: Urbana
Language: eng
Number of pages: 39
Subjects: Paleobotany -- Pennsylvanian.; Coal balls -- Illinois -- Illinois Basin.
Notes: Bibliography: p. 33.