@misc{indiciaee0e8e74ad7ec,
  title = {Preliminary geologic map of the Ashland Quadrangle and part of the Ashland SE Quadrangle, Clark County, Kansas},
  author = {G. M. Fairer and M. W. Green},
  year = {1994},
  doi = {10.3133/ofr94657},
  url = {https://pubs.usgs.gov/publication/ofr94657},
  note = {Source identifier: ofr94657}
}