@misc{indiciae8ef61ed196fd,
  title = {Quality-assurance data for routine water analysis in the laboratories of the US Geological Survey; 1981 annual report},
  author = {D.B. Peart and Nancy Thomas},
  year = {1983},
  doi = {10.3133/wri834090},
  url = {https://pubs.usgs.gov/publication/wri834090},
  note = {Source identifier: wri834090}
}