@misc{indiciaeaecaf329bd4a,
  title = {Physical and chemical properties of the phosphate deposit on Nauru, western equatorial Pacific Ocean},
  author = {David Z. Piper and B.J. Loebner and P. Aharon},
  year = {1990},
  url = {https://pubs.usgs.gov/publication/70208053},
  note = {Source identifier: 70208053}
}