TY  - RPRT
TI  - Bureau circular no. 13 2nd edition: standard specifications for the purchase of carbon-filament incandescent lamps
PY  - 1908
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 13e2
DO  - 10.6028/NBS.CIRC.13e2
ER  -