@misc{indiciaec01e74bd21d7,
  title = {Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers — Illustration, Page 27},
  year = {1905},
  url = {https://www.biodiversitylibrary.org/page/19741066},
  note = {Source identifier: page-19741066}
}