@misc{indiciae2ee6049caa87,
  title = {GSPOST version 3.0: A program to plot symbols and post numerical data from ASCII tables providing geodetic or Cartesian coordinates using an IBM PC (or compatible) microcomputer and plotter},
  author = {Gary I. Selner and Cole L. Smith and Richard B. Taylor},
  year = {1990},
  doi = {10.3133/ofr90269b},
  url = {https://pubs.usgs.gov/publication/ofr90269B},
  note = {Source identifier: ofr90269B}
}