TY - BOOK TI - Radiation protection in the mineral extraction industry T2 - Report, no.<118> SN - 0929600339 SN - 0083209X PY - 1993/// CY - Bethesda, Md. PB - NCRP N1 - Recommendations of the NCRP; Apéndices, glosario y bibliografía: p.96-116 ER -