Natural background radiation in the United States : recommendations of the National Council on Radiation Protection and Measurements.
— Washington : The Council, 1975. xi, 163 p. : il. ; 23 cm. — (NCRP report, ISSN 0083-209X ; no. 45)
Incluye índice.
Bibliografía: p. 129-150.
ISBN 0913392278
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