TY  - RPRT
TI  - Circular of the Bureau of Standards no. 111: recommended specification for flat interior lithopone paint, white and light tints
PY  - 1921
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 111
DO  - 10.6028/NBS.CIRC.111
ER  -