@misc{indiciae71d9e7be99da,
  title = {A practical text-book of infection, immunity and specific therapy, with special reference to immunilogic technics — Illustration, BHL page 20717787},
  year = {1917},
  url = {https://www.biodiversitylibrary.org/page/20717787},
  note = {Source identifier: page-20717787}
}