TY  - BOOK
AU  - Whittlesey,Charles
TI  - On the fresh-water glacial drift of the Northwestern states
T2  - Smithsonian contributions to knowledge. [vol. XV, art. 3]
AV  - Q11 .S68 vol. 15
PY  - 1866///]
CY  - [Washington
PB  - Smithsonian Institution
KW  - Geology
KW  - Northwestern States
KW  - Glacial epoch
ER  -