@misc{indiciae2d1b983b0f08,
  title = {Journal of Research of the U. S. Geological Survey, 1974, volume 2, issue 6},
  year = {1974},
  doi = {10.3133/70007405},
  url = {https://pubs.usgs.gov/publication/70007405},
  note = {Source identifier: 70007405}
}