@misc{indiciae79f75122e4a1,
  title = {George Engelmann : botanical notebook 39 : Yucca (Agavaceae) — Illustration, [No.] 8560},
  year = {1873},
  url = {https://www.biodiversitylibrary.org/page/56074672},
  note = {Source identifier: page-56074672}
}