@misc{indiciaeba09b98de8a6,
  title = {Map showing lithology of Precambrian rocks in the Christensen Ranch and adjacent quadrangles, Madison and Beaverhead Counties, Montana},
  author = {H. L. James and K. L. Wier and K.W. Shaw},
  year = {1969},
  doi = {10.3133/ofr69132},
  url = {https://pubs.usgs.gov/publication/ofr69132},
  note = {Source identifier: ofr69132}
}