@misc{indiciae512083c40141,
  title = {Preliminary assessment of sources of nitrogen in groundwater at a biosolids-application area near Deer Trail},
  author = {Tracy J.B. Yager and Peter B. McMahon},
  year = {2012},
  doi = {10.3133/sir20125056},
  url = {https://pubs.usgs.gov/publication/sir20125056},
  note = {Source identifier: sir20125056}
}