@misc{indiciaecda92dfe942e,
  title = {Laboratory performance in the Sediment Laboratory Quality-Assurance Project, 1996-98},
  author = {John D. Gordon and Carla A. Newland and Shane T. Gagliardi},
  year = {2000},
  doi = {10.3133/wri994184},
  url = {https://pubs.usgs.gov/publication/wri994184},
  note = {Source identifier: wri994184}
}