@misc{indiciae5384eb66c21e,
  title = {Information relevant to the U.S. Geological Survey assessment of the Middle Devonian Shale of the Appalachian Basin Province, 2011},
  author = {USGS Marcellus Shale Assessment Team},
  year = {2011},
  doi = {10.3133/ofr20111298},
  url = {https://pubs.usgs.gov/publication/ofr20111298},
  note = {Source identifier: ofr20111298}
}