@misc{indiciae2e661612db52,
  title = {New technology and exploration may much extend the life of the Southeastern phosphate industry},
  author = {V.E. McKelvey},
  year = {1985},
  doi = {10.3133/ofr85580},
  url = {https://pubs.usgs.gov/publication/ofr85580},
  note = {Source identifier: ofr85580}
}