@misc{indiciaee90fed100b5d,
  title = {Potential additions to technically recoverable resources for each continuous-type (unconventional) play of the U.S. Geological Survey 1995 National assessment of United States oil and gas resources; graphical and tabular presentations},
  author = {J. W. Schmoker and Robert A. Crovelli and Richard H. Balay},
  year = {1995},
  doi = {10.3133/ofr9575e},
  url = {https://pubs.usgs.gov/publication/ofr9575E},
  note = {Source identifier: ofr9575E}
}