@misc{indiciaea665fff667ed,
  title = {Carbon isotope composition of CO2 at Cascade Arc volcanoes},
  author = {William C. Evans and Robert H. Mariner and Deborah Bergfeld and Kinga M. Revesz and John P. McGeehin},
  year = {2010},
  url = {https://pubs.usgs.gov/publication/70236060},
  note = {Source identifier: 70236060}
}