Limitation of exposure to ionizing radiation. - Bethesda, Md. : NCRP, 1993. - vi, 88 p. : tabla - Report, no.<116> . - Estados Unidos. National council on radiation protection and measurements . - Report, no.<116> . Recommendations of the NCRP ApĂ©ndice, glosario y bibliografĂa: p.57-65 ISBN: 0929600304 ISSN: 0083209X Standard No.: NCRP-REPORT-116