TY  - RPRT
TI  - Sections and maps of Lower Ordovician and Cambrian rocks in the Michigan basin, Michigan and adjoining areas
AU  - G. V. Cohee
PY  - 1945
DO  - 10.3133/oc9
UR  - https://pubs.usgs.gov/publication/oc9
ID  - oc9
ER  -