@misc{indiciae3d08a3e1909e,
  title = {Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation — Illustration, Page 331},
  year = {1918},
  url = {https://www.biodiversitylibrary.org/page/21458043},
  note = {Source identifier: page-21458043}
}