Narlikar, Jayant V  <br/><br/>
Seven wonders of the cosmos  

 - Cambridge:   Cambridge University Press,   1999 
 - x, 324p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Gravity  
<br/><br/><label>Universal Decimal Class. No.: </label>52   / N9