@misc{indiciae187640c4bf0c,
  title = {Chapter 21 Western phosphate field - Depositional and economic deposit models},
  author = {Phillip R. Moyle and David Z. Piper},
  year = {2004},
  doi = {10.1016/s1874-2734(04)80023-8},
  url = {https://pubs.usgs.gov/publication/70208038},
  note = {Source identifier: 70208038}
}