@misc{indiciae9eeedfb99ff5,
  title = {Geologic observations in the epicentral area of the San Francisco earthquake of March 22, 1957},
  author = {Manuel G. Bonilla},
  year = {1959},
  url = {https://pubs.usgs.gov/publication/70197847},
  note = {Source identifier: 70197847}
}