TY  - RPRT
TI  - Aeromagnetic and geologic map of northwestern Minnesota
AU  - G. D. Bath
AU  - G. M. Schwartz
AU  - F. P. Gilbert
PY  - 1964
DO  - 10.3133/gp471
UR  - https://pubs.usgs.gov/publication/gp471
ID  - gp471
ER  -