@misc{indiciaef4463136feb3,
  title = {An assessment of the variability in performance of wet atmospheric deposition samplers},
  author = {R.C. Graham and J.K. Robertson and John Obal},
  year = {1987},
  doi = {10.3133/wri874125},
  url = {https://pubs.usgs.gov/publication/wri874125},
  note = {Source identifier: wri874125}
}