Development of paleobotany in the Illinois Basin Phillips, Tom Lee, 1931- creator text book Urbana Illinois State Geological Survey 1973 1973
print
ENG Cover title. History Illinois Indiana Kentucky Paleobotany QE105 .A45 no. 480 561/.19/773 Circular (Illinois State Geological Survey), 480 https://www.biodiversitylibrary.org/bibliography/61485 1056454 10.5962/bhl.title.61485 DLC