Permissible dose from external sources of ionizing radiation  recommendations of the National Committee on Radiation Protection 

 - Washington  U.S. Department of Commerce  1954 
 - viii, 79 s.  graf., tbl.  18 cm. 
 - National Bureau of Standards handbook  59 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiation--Dosage.<br/>Radiation--Physiological effect.
<br/><br/><label>Dewey Class. No.: </label>539.752 NAT 1954