Palynology and petrography of a Middle Devonian coal in Illinois /
Damberger, H. H.,
1933-
Peppers, Russel A. (Russel Allen),
1932-
text
book
Urbana :
Illinois State Geological Survey,
1969.
1969
English
Coal
Devonian
Geology
Illinois
Paleobotany
Palynology
QE105 .A45 no. 445
557.73/08 s
Circular (Illinois State Geological Survey) ; 445.
http://www.biodiversitylibrary.org/bibliography/61460
133798
79629701
DLC