TY  - BOOK
T1  - Bibliography and index of Illinois geology through 1965;a contribution to the Illinois sesquicentennial year
DA  - 1968.
CY  - Urbana,
AU  - Willman, H. B.
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Urbana,
PY  - 1968.
ID  - 58
KW  - Geology
KW  - Geology
TI  - Bibliography and index of Illinois geology through 1965;a contribution to the Illinois sesquicentennial year
ER  -