@misc{indiciaee5b21b328dd1,
  title = {Digital data for the preliminary bedrock geologic map of the Roseau 1 degree x 2 degrees quadrangle, Minnesota, U.S.A., and Ontario, Canada in GSMAP version 7.0 format},
  author = {Warren C. Day and Terry L. Klein and Klaus J. Schulz},
  year = {1991},
  doi = {10.3133/ofr90544b},
  url = {https://pubs.usgs.gov/publication/ofr90544B},
  note = {Source identifier: ofr90544B}
}