@misc{indiciae58da8617636a,
  title = {Stratigraphy and paleoenvironment of the phosphatic miocene strata of North Carolina},
  author = {T. G. Gibson},
  year = {1967},
  doi = {10.1130/0016-7606(1967)78[631:sapotp]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70221321},
  note = {Source identifier: 70221321}
}