TY  - BOOK
TI  - Medical X-ray and gamma-ray protection for energies up to 10 MeV : equipment design and use
T2  - Report, no.<33>
SN  - 0083-209X
PY  - 1968///
CY  - Washington
PB  - NCRP
N1  - Recommendations of the NCRP; Bibliografía y apéndices: p.35-45
ER  -