TY  - BOOK
AU  - Gilbert,Grove Karl
TI  - ... Recent earth movement in the Great Lakes region,
AV  - GB488.G7 G2
PY  - 1898///
CY  - Washington
PB  - Gov't print. off.
KW  - Geology, Stratigraphic
KW  - Pleistocene
KW  - Geology
KW  - Great Lakes (North America)
N1  - Extract from the 18th annual report of the U. S. Geological survey, 1896-97, pt. II
ER  -