@misc{indiciaef0ccc7f50eb4,
  title = {QUALITY ASSURANCE OF U. S. GEOLOGICAL SURVEY WATER-QUALITY FIELD MEASUREMENTS.},
  author = {D. E. Erdmann and J.D. Thomas},
  year = {1985},
  url = {https://pubs.usgs.gov/publication/70013191},
  note = {Source identifier: 70013191}
}