TY  - ART
TI  - 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 29
PY  - 1911
UR  - https://www.biodiversitylibrary.org/page/21225249
ID  - page-21225249
ER  -