@misc{indiciaed0402540e83d,
  title = {Geology and paleontology of Canal Zone and adjoining parts of Panama; description of Tertiary mollusks (gastropods: Vermetidae to Thaididae)},
  author = {W. P. Woodring},
  year = {1959},
  doi = {10.3133/pp306b},
  url = {https://pubs.usgs.gov/publication/pp306B},
  note = {Source identifier: pp306B}
}