@misc{indiciae377f16d5dc00,
  title = {Assessment of undiscovered gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2019},
  author = {Debra K. Higley and Catherine B. Enomoto and Heidi M. Leathers-Miller and Geoffrey S. Ellis and Tracey J. Mercier and Christopher J. Schenk and Michael H. Trippi and Phuong A. Le and Michael E. Brownfield and Cheryl A. Woodall and Kristen R. Marra and Marilyn E. Tennyson},
  year = {2019},
  doi = {10.3133/fs20193050},
  url = {https://pubs.usgs.gov/publication/fs20193050},
  note = {Source identifier: fs20193050}
}