@misc{indiciaee68e380a7f17,
  title = {Preliminary note on the minor-metal content of Florida phosphate rock},
  author = {Vincent Ellis McKelvey and James Bachelder Cathcart and H.W. Worthing},
  year = {1951},
  doi = {10.3133/tem236},
  url = {https://pubs.usgs.gov/publication/tem236},
  note = {Source identifier: tem236}
}