TY  - BOOK
AU  - Medaris, L. G.
CN  - QE653 .E2 1983
CN  - QE653
CY  - Boulder, Colo. :
DA  - 1983.
ID  - 101473
KW  - Geology, Stratigraphic
KW  - Geology
PB  - Geological Society of America,
PP  - Boulder, Colo. :
PY  - 1983.
SN  - 0813711606
T1  - Early proterozoic geology of the Great Lakes region /
TI  - Early proterozoic geology of the Great Lakes region /
ER  -