| Author: | Collinson, Charles William |
| Subject: | QE, Paleobotany -- Illinois, Paleobotany -- Pennsylvanian |
| Format: | Electronic text |
| Date issued: | 2021 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Field Book : Pennsylvanian Plant Fossils of Illinois [electronic resource] / Charles William Collinson |