@misc{indiciae635648c4dbd6,
  title = {Utility program for GSDRAW and GSMAP version 5.0 using an IBM PC (or compatible) microcomputer, digitizer, and plotter},
  author = {G.I. Selner and Richard B. Taylor},
  year = {1988},
  doi = {10.3133/ofr88537a},
  url = {https://pubs.usgs.gov/publication/ofr88537A},
  note = {Source identifier: ofr88537A}
}