@misc{indiciae97f68a740acf,
  title = {Principal facts for gravity data compiled for the Conterminous United States Mineral Appraisal Program, Tonopah 1- by 2-degree quadrangle, Nevada, Part C - Digital gravity data},
  author = {Donald Plouff},
  year = {1990},
  doi = {10.3133/ofr90457c},
  url = {https://pubs.usgs.gov/publication/ofr90457C},
  note = {Source identifier: ofr90457C}
}