Gardner, Martin, <br/><br/>
Relativity simply explained / 
Martin Gardner ; illustrated by Anthony Ravielli. 
 - Mineola, N.Y. :  Dover Publications,  c1997. 
 - viii, 179 p. :  col. ill. ; 
<br/><br/> Originally published: The relativity explosion. Rev. updated ed. New York : Vintage Books, 1976.  Includes index. 
<br/><br/><label>ISBN: </label>0486293157 (pbk.) 
<br/><br/><label>Subjects--Index Terms: </label>Relativity 
<br/><br/><label>Universal Decimal Class. No.: </label>51-71:530.12  / GAR