@misc{indiciaec2a8a5b11323,
  title = {Preliminary overview map of volcanic hazards in the 48 conterminous United States},
  author = {D. R. Mullineaux},
  year = {1976},
  doi = {10.3133/mf786},
  url = {https://pubs.usgs.gov/publication/mf786},
  note = {Source identifier: mf786}
}