@misc{indiciaec159c3605f42,
  title = {Whitlockite and apatite of surficial phosphate occurrences on Enderbury Island, Phoenix Islands, Pacific Ocean},
  author = {R. A. Gulbrandsen},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/70232596},
  note = {Source identifier: 70232596}
}