@misc{indiciae030d159d8a47,
  title = {DLGGSM : a program to load data from 1:24,000- scale and 1:100,000-scale topographic maps stored in the Digital Line Graph-3 (optional) format into a GSMAP data base, Part B - Executable program disk},
  author = {Gary I. Selner and Gregory N. Green},
  year = {1990},
  doi = {10.3133/ofr90459b},
  url = {https://pubs.usgs.gov/publication/ofr90459B},
  note = {Source identifier: ofr90459B}
}