@misc{indiciae18072234e0ad,
  title = {Acid precipitation; an annotated bibliography},
  author = {Denise A. Wiltshire and Margaret L. Evans},
  year = {1984},
  doi = {10.3133/cir923},
  url = {https://pubs.usgs.gov/publication/cir923},
  note = {Source identifier: cir923}
}