TY  - RPRT
TI  - Circular of the Bureau of Standards no. 299 2nd edition: United States government master specification for brick, fire-clay
PY  - 1926
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 299e2
DO  - 10.6028/NBS.CIRC.299e2
ER  -