TY  - RPRT
TI  - Geology and magnetic anomalies of T. 42 N., R. 30 W., Dickinson County, Michigan
AU  - F.J. Pettijohn
PY  - 1951
DO  - 10.3133/ofr5176
UR  - https://pubs.usgs.gov/publication/ofr5176
ID  - ofr5176
ER  -