Medical X-ray and gamma-ray protection for energies up to 10 MeV : structural shielding design and evaluation handbook. 

 - Washington :  NCRP,  1970. 
 - vi, 117 p. :  tablas, diagr. 
 - Report, no.<34> .
 - Estados Unidos. National council on radiation protection and measurements .
 - Report, no.<34> .
<br/><br/> Recommendations of the NCRP  NCRP-REPORT--34 es reemplazado por NCRP-REPORT--49 y NCRP-REPORT--51  Apéndices y bibliografía: p.43-101 
<br/><br/><label>ISSN: </label>0083-209X 
<br/><br/><label>Standard No.: </label>NCRP-REPORT-34