@misc{indiciaedabf7e7e8b8f,
  title = {George Engelmann : botanical notebook 7 : Echinocactus, Echinopsis, and Cereus — Illustration, [No.] 1792},
  url = {https://www.biodiversitylibrary.org/page/56147466},
  note = {Source identifier: page-56147466}
}