@misc{indiciaed7d3c9138949,
  title = {External Quality Assurance Programs Managed by the U.S. Geological Survey in Support of the National Atmospheric Deposition Program/Mercury Deposition Network},
  author = {Natalie E. Latysh and Gregory A. Wetherbee},
  year = {2007},
  doi = {10.3133/ofr20071170},
  url = {https://pubs.usgs.gov/publication/ofr20071170},
  note = {Source identifier: ofr20071170}
}