@misc{indiciaec60b86dff006,
  title = {Spectrographic analyses of subsurface Cambrian insoluble-residue samples from southern Missouri},
  author = {E. L. Mosier and M. S. Erickson and S.K. McDanal},
  year = {1982},
  doi = {10.3133/ofr82143},
  url = {https://pubs.usgs.gov/publication/ofr82143},
  note = {Source identifier: ofr82143}
}