TY  - RPRT
TI  - Aeromagnetic and geologic map of east-central Minnesota
AU  - G. D. Bath
AU  - G. M. Schwartz
AU  - F. P. Gilbert
PY  - 1964
DO  - 10.3133/gp474
UR  - https://pubs.usgs.gov/publication/gp474
ID  - gp474
ER  -