TY - BOOK TI - Krypton85 in the atmosphere : accumulation, biological significance, and control technology T2 - Report, no.<44> SN - 091339226X SN - 0083209X PY - 1975/// CY - Washington PB - NCRP KW - RADIACIONES -EXPOSICION KW - CRIPTON85 N1 - Recommendations of the NCRP; Apéndices y bibliografía: p.50-65 ER -