TY  - RPRT
TI  - Circular of the Bureau of Standards no. 13 8th edition: standard specifications for incandescent electric lamps (tungsten (or mazda) and carbon)
PY  - 1918
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 13e8
DO  - 10.6028/NBS.CIRC.13e8
ER  -