@misc{indiciae78686683791e,
  title = {The Geology of the Florida Land-Pebble Phosphate Deposits},
  author = {J.B. Cathcart and L.V. Blade and D.F. Davidson and K. B. Ketner},
  year = {1952},
  doi = {10.3133/ofr5334},
  url = {https://pubs.usgs.gov/publication/ofr5334},
  note = {Source identifier: ofr5334}
}