@misc{indiciaec815cfa3a3f0,
  title = {Computer program for geochemical correlation studies},
  author = {J. B. Rapp},
  year = {1984},
  doi = {10.3133/ofr84415},
  url = {https://pubs.usgs.gov/publication/ofr84415},
  note = {Source identifier: ofr84415}
}