@misc{indiciae16d0a20be31d,
  title = {Selected annotated bibliography of gypsum and anhydrite in the United States and Puerto Rico},
  author = {Charles F. Withington and Marion Charlotte Jaster},
  year = {1960},
  doi = {10.3133/b1105},
  url = {https://pubs.usgs.gov/publication/b1105},
  note = {Source identifier: b1105}
}