@misc{indiciaea75cd7eeede2,
  title = {Memorandum on the post-Paleocene subsurface stratigraphy of Memphis, Tennessee},
  author = {C. A. Armstrong},
  year = {1955},
  doi = {10.3133/ofr551},
  url = {https://pubs.usgs.gov/publication/ofr551},
  note = {Source identifier: ofr551}
}