@misc{indiciae5cae3a74f460,
  title = {Field trip guide to Mount St. Helens, Washington—Recent and ancient volcaniclastic processes and deposits},
  author = {Richard B. Waitt and Jon J. Major and Richard P. Hoblitt and Alexa R. Van Eaton and Michael A. Clynne},
  year = {2019},
  doi = {10.3133/sir20175022e},
  url = {https://pubs.usgs.gov/publication/sir20175022E},
  note = {Source identifier: sir20175022E}
}