TY  - RPRT
TI  - Letter Circular 155: publications by the Bureau of Standards on cement, concrete, reinforced concrete, stucco, magnesite, building stone and related subjects
PY  - 1927
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 155r1927
DO  - 10.6028/NBS.LCIRC.155r1927
ER  -