@misc{indiciaed194a015b7ee,
  title = {Nitrate isotopes in groundwater systems},
  author = {Carol Kendall and Ramon Aravena},
  year = {2000},
  doi = {10.1007/978-1-4615-4557-6\_9},
  url = {https://pubs.usgs.gov/publication/70199234},
  note = {Source identifier: 70199234}
}