TY  - RPRT
TI  - Circular of the Bureau of Standards no. 344: United States government master specification for tile, hollow, clay, floor
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 344
DO  - 10.6028/NBS.CIRC.344
ER  -