Report of the United Nations Scientific Committee on the effects of Atomic Radiation, Official Record   Twenty-fourth session.    

 - New York  U.N.           1969 
 - iii; 165p.  cm. 
 - Supplement no.13 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3 (c9B2).N69r, K9/UN