@misc{indiciae9e78ecadabdc,
  title = {Programs to print postscript files on Precision Image plotter},
  author = {R. K. Mark},
  year = {1992},
  doi = {10.3133/ofr92421},
  url = {https://pubs.usgs.gov/publication/ofr92421},
  note = {Source identifier: ofr92421}
}