Guidance on radiation received in space activities. 

 - Bethesda, Md. :  NCRP,  1989. 
 - x, 229 p. 
 - Report, no.<98> .
 - Estados Unidos. National council on radiation protection and measurements .
 - Report, no.<98> .
<br/><br/> Recommendations of the NCRP  Glosario y bibliografía: p.169-205 
<br/><br/><label>ISBN: </label>0929600045 
<br/><br/><label>ISSN: </label>0083209X 
<br/><br/><label>Standard No.: </label>NCRP-REPORT-98