@misc{indiciae5b037d3826ab,
  title = {Probable origin of ciliates found in oral swabbing of doves and pigeons},
  author = {R. M. Kocan},
  year = {1968},
  doi = {10.2307/3277139},
  url = {https://pubs.usgs.gov/publication/5220536},
  note = {Source identifier: 5220536}
}