TY  - RPRT
TI  - Correlation of Precambrian rocks of the Lake Superior region, United States
AU  - G. B. Morey
AU  - W. R. Van Schmus
PY  - 1988
DO  - 10.3133/pp1241f
UR  - https://pubs.usgs.gov/publication/pp1241F
ID  - pp1241F
ER  -