@misc{indiciae7adc603dbef3,
  title = {Carbon and hydrogen isotopic evidence for the origin of combustible gases in water-supply wells in north-central Pennsylvania},
  author = {K. M. Revesz and K. J. Breen and A.J. Baldassare and R.C. Burruss},
  year = {2010},
  doi = {10.1016/j.apgeochem.2010.09.011},
  url = {https://pubs.usgs.gov/publication/70037682},
  note = {Source identifier: 70037682}
}