Exposure to radiation from the natural radioactivity in building materials : 
report by a Group of Experts of the OECD Nuclear Energy Agency. 
 - Paris    OECD NEA  1979 
 - 34 p.    ill.  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Building materials.<br/>Radioactivity--Measurement.
<br/><br/><label>Dewey Class. No.: </label>539.77 EXP 1979