TY  - RPRT
TI  - Circular of the Bureau of Standards no. 331: United States government master specification for chrome yellow (lemon, medium, and orange; dry, paste in oil, and paste in Japan)
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 331
DO  - 10.6028/NBS.CIRC.331
ER  -