@misc{indiciae63da0fc35aba,
  title = {Special application of the computer program XRDPLT: accessing a user-generated data base},
  author = {George Van Trump and Phoebe L. Hauff},
  year = {1977},
  doi = {10.3133/ofr7753},
  url = {https://pubs.usgs.gov/publication/ofr7753},
  note = {Source identifier: ofr7753}
}