@misc{indiciae3ef9ec2fdd3a,
  title = {Selected sources of information on U.S. and world energy resources: An annotated bibliography},
  author = {James Trumbull},
  year = {1961},
  doi = {10.3133/cir447},
  url = {https://pubs.usgs.gov/publication/cir447},
  note = {Source identifier: cir447}
}