@misc{indiciaeeb14b35668b4,
  title = {U.S. Geological Survey external quality-assurance project report to the National Atmospheric Deposition Program / National Trends Network and Mercury Deposition Network, 2007-08},
  author = {Gregory A. Wetherbee and Natalie E. Latysh and Tanya A. Chesney},
  year = {2010},
  url = {https://pubs.usgs.gov/publication/70047800},
  note = {Source identifier: 70047800}
}