@misc{indiciae6d00a5e394e3, title = {Natural gases in ground water near Tioga Junction, Tioga County, north-central Pennsylvania: Occurrence and use of isotopes to determine origins, 2005}, author = {Kevin J. Breen and Kinga Revesz and Fred J. Baldassare and Steven D. McAuley}, year = {2007}, doi = {10.3133/sir20075085}, url = {https://pubs.usgs.gov/publication/sir20075085}, note = {Source identifier: sir20075085} }