@misc{indiciae956eb9ea8dba,
  title = {Distribution of ferromanganese nodules in the Pacific Ocean.},
  author = {D.Z. Piper and T. R. Swint-Iki and F.W. McCoy},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/70015230},
  note = {Source identifier: 70015230}
}