@misc{indiciae9acaaf4d991f,
  title = {Geologic map of Alamagan Volcano, northern Mariana Islands},
  author = {R. B. Moore and F. A. Trusdell},
  year = {1993},
  doi = {10.3133/i2408},
  url = {https://pubs.usgs.gov/publication/i2408},
  note = {Source identifier: i2408}
}