@misc{indiciaed7f126e9064c,
  title = {Mineral resources of Korea},
  author = {David Gallagher and Montis Klepper and William Overstreet and Raymond Sample},
  year = {1962},
  doi = {10.3133/ofr6249},
  url = {https://pubs.usgs.gov/publication/ofr6249},
  note = {Source identifier: ofr6249}
}