TY  - BOOK
T1  - Sand and gravel and peat resources in northeastern Illinois /
DA  - 1978.
CY  - Urbana :
AU  - Masters, John M.
VL  - 503
CN  - QE105
CN  - QE105
PB  - Illinois State Geological Survey,
PP  - Urbana :
PY  - 1978.
ID  - 12763
KW  - Sand
KW  - Gravel
KW  - Peat
TI  - Sand and gravel and peat resources in northeastern Illinois /
ER  -