@misc{indiciae7ca579b4a8c6, title = {The concrete engineer's handbook; a convenient reference book for all persons interested in cement, plain and reinforced concerte, building construction, architecture, concrete blocks, mill building, office building, fireproof houses, etc — Illustration, Page 136}, year = {1912}, url = {https://www.biodiversitylibrary.org/page/17475518}, note = {Source identifier: page-17475518} }