@misc{indiciae7777d4f63c7e,
  title = {Geologic and seismologic aspects of the Managua, Nicaragua, earthquakes of December 23, 1972},
  author = {Robert David Brown and Peter L. Ward and George Plafker},
  year = {1973},
  doi = {10.3133/pp838},
  url = {https://pubs.usgs.gov/publication/pp838},
  note = {Source identifier: pp838}
}