@misc{indiciae87026c895f7c,
  title = {Bibliography of the geology of sedimentary phosphorite and igneous apatite},
  author = {N.J. Bridges and M.Y. Jones and A.I. Lee and R. W. Bowen and R.P. Sheldon},
  year = {1983},
  doi = {10.3133/ofr83841},
  url = {https://pubs.usgs.gov/publication/ofr83841},
  note = {Source identifier: ofr83841}
}