@misc{indiciae3f00e317dea8,
  title = {Phosphate investigation in Florida, 1934 and 1935},
  author = {Paul Vere Roundy},
  year = {1941},
  doi = {10.3133/b906f},
  url = {https://pubs.usgs.gov/publication/b906F},
  note = {Source identifier: b906F}
}