@misc{indiciaec8be2cf4675f,
  title = {Map showing landslides and areas of susceptibility to landsliding in Puerto Rico},
  author = {W. H. Monroe},
  year = {1979},
  doi = {10.3133/i1148},
  url = {https://pubs.usgs.gov/publication/i1148},
  note = {Source identifier: i1148}
}