TY  - BOOK
TI  - Code of Practice for the Protection of Persons exposed to Ionozing Radiations
U1  - 615.8422 
PY  - 1957///
CY  - London
PB  - Her Majesty's Stationery Office
KW  - Diagnosis
KW  - Radiation - Therapy
KW  - X-Rays - Diagnosis
ER  -