Operational radiation safety program. - Washington : NCRP, 1978. - vi, 62 p. - Report, no.<59> . - Estados Unidos. National council on radiation protection and measurements . - Report, no.<59> . Recommendations of the NCRP ApĂ©ndice: p.48-49 BibliografĂa incluida en el texto ISBN: 091339243X ISSN: 0083209X Standard No.: NCRP-REPORT-59 Subjects--Topical Terms: RADIACIONES -PROTECCION