@misc{indiciaebaaac9e71097,
  title = {Porphyry copper assessment of Central America and the Caribbean Basin},
  author = {Floyd Gray and Jane M. Hammarstrom and Stephen Ludington and Lukas Zürcher and Carl E. Nelson and Gilpin R. Robinson and Robert J. Miller and Barry C. Moring},
  year = {2014},
  doi = {10.3133/sir20105090i},
  url = {https://pubs.usgs.gov/publication/sir20105090I},
  note = {Source identifier: sir20105090I}
}