TY  - RPRT
TI  - Circular of the Bureau of Standards no. 94: recommended specification for black paint, semipaste and ready-mixed
PY  - 1920
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 94
DO  - 10.6028/NBS.CIRC.94
ER  -