Anspach, S. C. <br/><br/>
Half lives of materials used in the preparation of standard reference materials of nineteen radioactive nuclides issued by the National Bureau of Standards 

 - Washington,  For sale by the Superintendent of Documents, U.S. Govt. Print. Off.,  1965. 
 - iii, 12 p.  26 cm. 
 - National Bureau of Standards miscellaneous publication  Standard reference materials,  260.  9 .
 - United States.  National Bureau of Standards.  Miscellaneous publication ;  260. United States.  National Bureau of Standards.  Standard reference materials ;  9. .
<br/><br/>Incluye bibliografía. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Half-life (Nuclear physics)<br/>RADIOISOTOPES--Decay.<br/>RADISOTOPOS
<br/><br/><label>Dewey Class. No.: </label>539.163 eS82 
<br/><br/><label>Gov. Doc. Class. No.: </label>C 13.10:260-9