@misc{indiciae44048e015689,
  title = {The Zapot pegmatite mineral county},
  author = {E.E. Foord and A.E. Soregaroli and H.M. Gordon},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70021494},
  note = {Source identifier: 70021494}
}