The relation between illumination and efficiencey in fine work (typesetting by hand)
Contributors: Weston, H. Claude; Taylor, A. K.; Great Britain. Dept. of Scientific and Industrial Research. Illumination Research Committee; Medical Research Council (Great Britain)
Publisher: H.M. Stationery off.
Published: 1926
Place of publication: London
Language: eng
Subjects: Lighting.; Industrial efficiency.