@misc{indiciae0702a88fb4a8,
  title = {Chemical and X-ray analyses of 175 calcite and marble samples from the collection of the National Museum of Natural History, Smithsonian Institution},
  author = {Eurybiades Busenberg and Niel Plummer},
  year = {1984},
  doi = {10.3133/ofr83863},
  url = {https://pubs.usgs.gov/publication/ofr83863},
  note = {Source identifier: ofr83863}
}