TY  - RPRT
TI  - Circular of the Bureau of Standards no. 342: United States government master specification for tile, hollow, clay, load-bearing wall
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 342
DO  - 10.6028/NBS.CIRC.342
ER  -