@misc{indiciae019240726aa2,
  title = {Evaluation of stream chemistry trends in US Geological Survey reference watersheds, 1970-2010},
  author = {M. Alisa Mast},
  year = {2013},
  doi = {10.1007/s10661-013-3256-6},
  url = {https://pubs.usgs.gov/publication/70046169},
  note = {Source identifier: 70046169}
}