Parker, Herbert M. <br/><br/>
The squares of the natural numbers in radiation protection. 

 - Washington, D.C. :  National Council on Radiation Protection and Measurements,  1977. 
 - 144 p. :  il. 
 - NCRP : Lectures in radiation protection and measurements ; no. 1 .
 - Taylor, Lauriston Sale .
 - National Council on Radiation Protection and Measurements, Washington, D.C.^pUS .
 - NCRP : Lectures in radiation protection and measurements ; no. 1 .
<br/><br/> Notas de pie página  Bibliografía al final de cada artículo 
<br/><br/><label>ISBN: </label>0913392391 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RADIACIONES -PROTECCION
<br/><br/><label>Universal Decimal Class. No.: </label>614.876