@misc{indiciae12881c1a4be5,
  title = {A comparison of analytical methods used in geochemical prospecting for copper},
  author = {L.C. Huff and T.G. Lovering and H. W. Lakin and A.T. Myers},
  year = {1961},
  doi = {10.2113/gsecongeo.56.5.855},
  url = {https://pubs.usgs.gov/publication/70220604},
  note = {Source identifier: 70220604}
}