@misc{indiciae4248d8c10f5a,
  title = {Journal of Research of the U. S. Geological Survey, 1976, volume 4, issue 2},
  year = {1976},
  doi = {10.3133/70007413},
  url = {https://pubs.usgs.gov/publication/70007413},
  note = {Source identifier: 70007413}
}