@misc{indiciaedf12dddffdc1,
  title = {Review of the use of magnetic concentrates in geochemical exploration},
  author = {W.C. Overstreet and G.W. Day},
  year = {1985},
  doi = {10.3133/ofr85541},
  url = {https://pubs.usgs.gov/publication/ofr85541},
  note = {Source identifier: ofr85541}
}