@misc{indiciaef4d7fbf1e63c,
  title = {George Engelmann : botanical notebook 39 : Yucca (Agavaceae) — Illustration, [No.] 8791},
  year = {1872},
  url = {https://www.biodiversitylibrary.org/page/56096487},
  note = {Source identifier: page-56096487}
}