Structural shielding design and evaluation for medical use of X-rays and gamma rays of energies up to 10 MeV : recommendations of the National Council on Radiation Protection and Measurements.
— Washington : The Council, 1976. vi, 126 p. : il. ; 23 cm. — (NCRP report no. 49)
"Supersedes NCRP report no. 34."
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Incluye referencias bibliográficas.
ISBN 0913392316
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