Nuclear weapons 

 -  1970 
<br/><br/><label>Standard No.: </label>244,781 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PHYSICS
<br/><br/><label>Dewey Class. No.: </label>C9B3, L0