@misc{indiciae6a4d3b1212f0,
  title = {Preliminary map showing surficial deposits in the Cygnet Lake Quadrangle, Missoula County, Montana},
  author = {Irving Jerome Witkind},
  year = {1977},
  doi = {10.3133/ofr77198},
  url = {https://pubs.usgs.gov/publication/ofr77198},
  note = {Source identifier: ofr77198}
}