TY - BOOK AU - NoƩ,A.C. TI - Pennsylvanian flora of northern Illinois, T2 - Illinois. State geological survey. Bulletin, AV - QE105 .A16 no. 52 PY - 1925/// CY - Urbana, Ill. KW - Paleobotany KW - Illinois KW - Paleontology KW - Carboniferous N1 - At head of title: State of Illinois. Department of registration and education. Division of the geological survey ER -