@misc{indiciaeb6984b90a304,
  title = {Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers — Illustration, Page 60},
  year = {1905},
  url = {https://www.biodiversitylibrary.org/page/19741118},
  note = {Source identifier: page-19741118}
}