@misc{indiciae3562a6c8983e,
  title = {An analytical method for hydrogeochemical surveys: Inductively coupled plasma-atomic emission spectrometry after using enrichment coprecipitation with cobalt and ammonium pyrrolidine dithiocarbamate},
  author = {D.M. Hopkins},
  year = {1991},
  doi = {10.1016/0375-6742(91)90008-i},
  url = {https://pubs.usgs.gov/publication/70016376},
  note = {Source identifier: 70016376}
}