TY  - ART
TI  - 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 31
PY  - 1913
UR  - https://www.biodiversitylibrary.org/page/17469889
ID  - page-17469889
ER  -