@misc{indiciae0e144f8189d4,
  title = {Evaluating regional patterns in nitrate sources to watersheds in national parks of the Rocky Mountains using nitrate isotopes},
  author = {L. Nanus and M.W. Williams and K. Campbell and E.M. Elliott and C. Kendall},
  year = {2008},
  doi = {10.1021/es800739e},
  url = {https://pubs.usgs.gov/publication/70000128},
  note = {Source identifier: 70000128}
}