Code of Practice for the Protection of Persons Exposed to Ionizing Radiations (1957). H.M.S.O. London.
4.
Precautions in the Use of Ionising Radiations in Industry. Form 342 (1959). H.M.S.O. London.
5.
The Factories (Luminising) Special Regulations 1947. S.R. & O . (1947). No. 865.
6.
Manual of Industrial Radiation Protection. Part II. Model Code of Safety Regulations (Ionising Radiations) (1959). International Labour Office, Geneva.