@misc{indiciae8d6d9d4221b7,
  title = {Geology of the Reventado River Watershed, Costa Rica, Part A, General geology},
  author = {R.D. Krushensky},
  year = {1969},
  doi = {10.3133/ofr69147},
  url = {https://pubs.usgs.gov/publication/ofr69147},
  note = {Source identifier: ofr69147}
}