@misc{indiciae395976d93e2f,
  title = {External quality-assurance project report for the National Atmospheric Deposition Program’s National Trends Network and Mercury Deposition Network, 2019–20},
  author = {Gregory A. Wetherbee and RoseAnn Martin and Alexander Liethen},
  year = {2023},
  doi = {10.3133/sir20235045},
  url = {https://pubs.usgs.gov/publication/sir20235045},
  note = {Source identifier: sir20235045}
}