TY - BOOK TI - Radiation protection and measurement for lowvoltage neutron generators T2 - Report, no.<72> SN - 0913392618 SN - 0083209X PY - 1983/// CY - Bethesda, Md. PB - NCRP N1 - Recommendations of the NCRP; Apéndices y bibliografía: p.42-64 ER -