@misc{indiciae74842cbd3fcf,
  title = {Widespread late glacial and postglacial tephra deposits from Mount St. Helens Volcano, Washington},
  author = {Donal R. Mullineaux and Jack H. Hyde and Meyer Rubin},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/70232588},
  note = {Source identifier: 70232588}
}