TY  - BOOK
ED  - National Committee on Radiation Protection and Measurements
TI  - Permissible dose from external sources of ionizing radiation: recommendations of the National Committee on Radiation Protection
U1  - 539.752 NAT 1954 
PY  - 1954///
CY  - Washington
PB  - U.S. Department of Commerce
KW  - Radiation
KW  - Dosage
KW  - Physiological effect
ER  -