TY  - RPRT
TI  - Maps and seismic profiles showing thickness and distribution of postglacial deposits beneath the southern two-thirds of Lake Michigan
AU  - Steven M. Colman
PY  - 1992
DO  - 10.3133/i2202
UR  - https://pubs.usgs.gov/publication/i2202
ID  - i2202
ER  -