TY - BOOK ID - 133769319 TI - Field book, Pennsylvanian plant fossils of Illinois PY - 1966 PB - Urbana, Ill Illinois State Geological Survey DB - UniCat KW - Paleobotany KW - Illinois UR - https://www.unicat.be/uniCat?func=search&query=sysid:133769319 AB - ER -