@misc{indiciaec5405249b689,
  title = {ESTIMATE OF WORLD HEAVY CRUDE OIL AND NATURAL BITUMEN RESOURCES.},
  author = {Richard F. Meyer and Christopher J. Schenk},
  year = {1985},
  url = {https://pubs.usgs.gov/publication/70012969},
  note = {Source identifier: 70012969}
}