Carl Sajan,  <br/><br/>
Billions and Billions 

 - Oxford  HEADLINE  1997 
 - 246p 
<br/><br/><label>Subjects--Uniform Titles: </label>--POST GRADUATE REFERENCE
<br/><br/><label>Subjects--Topical Terms: </label><br/> Natural sciences & mathematics--Specific celestial bodies & phenomenaPhysics--Astronomy & allied sciences
<br/><br/><label>Dewey Class. No.: </label>523.1  / CAR-B