@misc{indiciaeea43d184c483,
  title = {Summary report on the geology and mineral resources of the Okefenokee National Wildlife Refuge, Georgia},
  author = {Jack Elwood Smedley},
  year = {1968},
  doi = {10.3133/b1260n},
  url = {https://pubs.usgs.gov/publication/b1260N},
  note = {Source identifier: b1260N}
}