TY  - BOOK
TI  - Effect of Distribution and Colour on the suitability of lighting for clerical work
U1  - 747.92 21st ed.
CY  - London
PB  - Majesty's Stationary Office
KW  - Illumination
KW  - Tungsten Vacuum
N1  - Illumination Research
Technical Paper no. 10
ER  -