@misc{indiciae9ccbddb7bcf8,
  title = {Preliminary map showing surficial deposits in the west half of the Holland Lake Quadrangle, Missoula County, Montana},
  author = {Irving Jerome Witkind},
  year = {1977},
  doi = {10.3133/ofr77199},
  url = {https://pubs.usgs.gov/publication/ofr77199},
  note = {Source identifier: ofr77199}
}