@misc{indiciaed53b4782006a,
  title = {Mudflows resulting from the May 18, 1980, eruption of Mount St. Helens, Washington},
  author = {John Cummans},
  year = {1981},
  doi = {10.3133/cir850b},
  url = {https://pubs.usgs.gov/publication/cir850B},
  note = {Source identifier: cir850B}
}