@misc{indiciae66a2acda7ef5,
  title = {Staff report on phosphates},
  author = {V.E. McKelvey and James B. Cathcart},
  year = {1949},
  doi = {10.3133/tei94},
  url = {https://pubs.usgs.gov/publication/tei94},
  note = {Source identifier: tei94}
}