TY  - RPRT
TI  - Circular of the Bureau of Standards no. 13 11th edition: United States government master specification for lamps, electric, incandescent, large, tungsten filament
PY  - 1927
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 13e11
DO  - 10.6028/NBS.CIRC.13e11
ER  -