@misc{indiciae8c2a0cf9402d,
  title = {Geology of the Manati quadrangle, Puerto Rico},
  author = {W. H. Monroe},
  year = {1962},
  doi = {10.3133/i334},
  url = {https://pubs.usgs.gov/publication/i334},
  note = {Source identifier: i334}
}