@misc{indiciae93c2b960ed9a,
  title = {Journal of Research of the U. S. Geological Survey, 1974, volume 2, issue 3},
  year = {1974},
  doi = {10.3133/70007402},
  url = {https://pubs.usgs.gov/publication/70007402},
  note = {Source identifier: 70007402}
}