@misc{indiciae6ebfe5fada25,
  title = {Relation of the "topography" of the Hawthorn formation to size of phosphate particles in the deposits, and to topography, in the northern part of the land-pebble phosphate field, Florida},
  author = {David Francis Davidson},
  year = {1952},
  doi = {10.3133/tem337},
  url = {https://pubs.usgs.gov/publication/tem337},
  note = {Source identifier: tem337}
}