@misc{indiciaed1a9946501f0,
  title = {Coalbed-methane production in the Appalachian basin},
  author = {Robert C. Milici and Desiree E. Polyak},
  year = {2014},
  doi = {10.3133/pp1708g.2},
  url = {https://pubs.usgs.gov/publication/pp1708G.2},
  note = {Source identifier: pp1708G.2}
}