"David H. Levy; consultant editor John O'Byrne; [introduction by Robert Burnham]" <br/><br/>
Skywatching 

 -  [Alexandria, VA] : Time-Life Books, c1994.  1994 
 - 288 
<br/><br/><label>ISBN: </label>9780783547510 
<br/><br/><label>Dewey Class. No.: </label>500  / 1102523