@misc{indiciae0367f0b4071b,
  title = {Relative abundance of nickel in the earth's crust},
  author = {R. C. Wells},
  year = {1943},
  doi = {10.3133/pp205a},
  url = {https://pubs.usgs.gov/publication/pp205A},
  note = {Source identifier: pp205A}
}