@misc{indiciaeb4d22f9b7186,
  title = {GSDRAW and GSMAP: Prototype programs for the IBM PC or compatible microcomputers to assist compilation and publication of geologic maps and illustrations},
  author = {G.I. Selner and R. B. Taylor and B. R. Johnson},
  year = {1986},
  doi = {10.3133/ofr8642},
  url = {https://pubs.usgs.gov/publication/ofr8642},
  note = {Source identifier: ofr8642}
}