@misc{indiciae5b9272bbae89,
  title = {Economic geology of the feldspar deposits of the United States},
  author = {Edson Sunderland Bastin},
  year = {1910},
  doi = {10.3133/b420},
  url = {https://pubs.usgs.gov/publication/b420},
  note = {Source identifier: b420}
}