@misc{indiciaedf9856e02fb2,
  title = {JKDIGIT, a program to control a digitizing board for geologists, written in BASIC for an IBM Personal Computer},
  author = {John O. Kork},
  year = {1986},
  doi = {10.3133/b1616},
  url = {https://pubs.usgs.gov/publication/b1616},
  note = {Source identifier: b1616}
}