@misc{indiciae23ec16428da0, title = {The civil engineer's handbook; a convenient reference book for chainmen, rodmen, transitmen, levelers, surveyors, as well as draftsmen, computers, and railroad, municipal, and hydraulic engineers — Illustration, Page 123}, year = {1913}, url = {https://www.biodiversitylibrary.org/page/17469981}, note = {Source identifier: page-17469981} }