@misc{indiciaec34edfa5bec9,
  title = {A Gemini mosaic along the thirty-second degree of latitude from Baja California to central Texas},
  author = {Jules A. MacKallor},
  year = {1968},
  doi = {10.3133/ofr68172},
  url = {https://pubs.usgs.gov/publication/ofr68172},
  note = {Source identifier: ofr68172}
}