TY  - BOOK
T1  - Structural features in Illinois--a compendium /
DA  - 1981.
CY  - Champaign, Ill. :
AU  - Treworgy, Janis D.
VL  - 519
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Champaign, Ill. :
PY  - 1981.
N1  - One map on 1 folded leaf in pocket.
ID  - 33700
KW  - Geology, Structural.
KW  - Geology
KW  - Geology, Structural
TI  - Structural features in Illinois--a compendium /
ER  -