Medical X-ray and gamma-ray protection for energies up to 10 MeV : equipment design and use. 

 - Washington :  NCRP,  1968. 
 - v, 66 p. :  tablas, diagr. 
 - Report, no.<33> .
 - Estados Unidos. National council on radiation protection and measurements .
 - Report, no.<33> .
<br/><br/> Recommendations of the NCRP  Bibliografía y apéndices: p.35-45 
<br/><br/><label>ISSN: </label>0083-209X 
<br/><br/><label>Standard No.: </label>NCRP-REPORT-33