@misc{indiciaec61acbc942e9,
  title = {Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984},
  author = {M. H. Brooks and L.J. Schroder and T. C. Willoughby},
  year = {1987},
  doi = {10.3133/wri874050},
  url = {https://pubs.usgs.gov/publication/wri874050},
  note = {Source identifier: wri874050}
}