TY  - BOOK
TI  - Recommendations of the International Commission on Radiological Protection: and of the internationl commission on radiological units 1950
U1  - 616.0757 
PY  - 1951///
CY  - Washington
PB  - National Bureau of Standards Handbook 47
KW  - Beta Radiation
KW  - Gamma Rays
KW  - Radiology
ER  -