@misc{indiciae199d76890b09,
  title = {Volcano warning systems: Chapter 67},
  author = {Chris E. Gregg and Bruce F. Houghton and John W. Ewert},
  year = {2015},
  doi = {10.1016/b978-0-12-385938-9.00067-5},
  url = {https://pubs.usgs.gov/publication/70186945},
  note = {Source identifier: 70186945}
}