TY  - BOOK
T1  - Pennsylvanian plant fossils of Illinois;field book.
DA  - 1960]
CY  - [Urbana,
AU  - Collinson, Charles William.
CN  - QE105
CN  - QE105
PP  - [Urbana,
PY  - 1960]
ID  - 16158
KW  - Paleobotany
KW  - Paleobotany
TI  - Pennsylvanian plant fossils of Illinois;field book.
ER  -