TY  - RPRT
TI  - Circular of the Bureau of Standards no. 93 3rd edition: United States government master specification for paints, iron-oxide and iron-hydroxide
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 93e3
DO  - 10.6028/NBS.CIRC.93e3
ER  -