@misc{indiciae819ec531c446,
  title = {The use of natural waters as U.S. Geological Survey reference samples},
  author = {Victor J. Janzer},
  year = {1985},
  doi = {10.1520/stp30311s},
  url = {https://pubs.usgs.gov/publication/70013313},
  note = {Source identifier: 70013313}
}