@misc{indiciae274fb24f9003,
  title = {The Arkansas coal field with reports on the paleontology},
  author = {Arthur James Collier and David White and George Herbert Girty},
  year = {1907},
  doi = {10.3133/b326},
  url = {https://pubs.usgs.gov/publication/b326},
  note = {Source identifier: b326}
}