Lighting in offices, shops and railway premises /
Great Britain.Health and Safety Executive.
London : H.M.S.O.,
1978.
Prepared by the Health and Safety Executive. -- Cover title. -- Lighting calculator in pocket.
Reprint of No. 39 in the Safety, Health and Welfare new series, published: 1976. Originally published: 1969  by the Dept. of Employment and Productivity.
Bibliography: p. 27.