TY  - BOOK
AU  - Shaver, Robert Harold,
CN  - QE109
CN  - QE109
CY  - Bloomington :
DA  - 1978.
ID  - 13375
KW  - Geology, Stratigraphic
KW  - Geology
PB  - Dept. of Natural Resources, Geological Survey,
PP  - Bloomington :
PY  - 1978.
T1  - The search for a Silurian reef model, Great Lakes area /
TI  - The search for a Silurian reef model, Great Lakes area /
ER  -