@misc{indiciaef1a3f1545d4f,
  title = {MRDS-4D; Mineral Resources Data System using 4th DIMENSION},
  author = {Hal Sindler and Paul Schruben and C.A. Carlson},
  year = {1995},
  doi = {10.3133/ofr95616},
  url = {https://pubs.usgs.gov/publication/ofr95616},
  note = {Source identifier: ofr95616}
}