TY  - RPRT
TI  - Total intensity aeromagnetic map of Douglas County and part of Grant County, Minnesota
AU  - J. R. Balsley
AU  - M. E. Hill
AU  - J. L. Meuschke
PY  - 1951
DO  - 10.3133/gp51
UR  - https://pubs.usgs.gov/publication/gp51
ID  - gp51
ER  -