@misc{indiciaef9fd202e2a53, 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 64}, year = {1911}, url = {https://www.biodiversitylibrary.org/page/21225303}, note = {Source identifier: page-21225303} }