@misc{indiciaeb92a8c4403ab,
  title = {Practical silo construction; a treatise illustrating and explaining the most simple and easiest practical methods of constructing concrete silos of all types; with unpatented forms and molds ... — Illustration, Page 44},
  year = {1911},
  url = {https://www.biodiversitylibrary.org/page/21225264},
  note = {Source identifier: page-21225264}
}