@misc{indiciaef1be3dd25507,
  title = {Supplemented graphic correlation; a powerful tool for paleontologists and nonpaleontologists},
  author = {Lucy E. Edwards},
  year = {1989},
  doi = {10.2307/3514601},
  url = {https://pubs.usgs.gov/publication/70016050},
  note = {Source identifier: 70016050}
}