@misc{indiciae3815c1125611,
  title = {An electromagnetic geophysical survey of the freshwater lens of Isla de Mona, Puerto Rico},
  author = {R.T. Richards and J.W. Troester and M.I. Martinez},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/70020782},
  note = {Source identifier: 70020782}
}