@misc{indiciae2c768214ada2,
  title = {Interagency report; Astrogeology 60, Geologic maps and terrain analysis data for Viking Mars 1975 landing sites considered in February and April 1973},
  author = {Harold Masursky and Mary H. Strobell},
  year = {1975},
  doi = {10.3133/ofr76432},
  url = {https://pubs.usgs.gov/publication/ofr76432},
  note = {Source identifier: ofr76432}
}