@misc{indiciae5b571f83ce98,
  title = {Field-trip guide to Mount St. Helens, Washington - An overview of the eruptive history and petrology, tephra deposits, 1980 pyroclastic density current deposits, and the crater},
  author = {John S. Pallister and Michael A. Clynne and Heather M. Wright and Alexa R. Van Eaton and James W. Vallance and David R. Sherrod and B. Peter Kokelaar},
  year = {2017},
  doi = {10.3133/sir20175022d},
  url = {https://pubs.usgs.gov/publication/sir20175022D},
  note = {Source identifier: sir20175022D}
}