@misc{indiciaedb682012124a,
  title = {Coal-seismic, desk-top computer programs in BASIC; Part 8, Pick first arrivals and align events on screen},
  author = {W.P. Hasbrouck},
  year = {1984},
  doi = {10.3133/ofr84175},
  url = {https://pubs.usgs.gov/publication/ofr84175},
  note = {Source identifier: ofr84175}
}