Hawking, Stephen. <br/><br/>
The nature of space and time /  
Stephen Hawking and Roger Penrose. 
 - New Delhi :   Oxford University Press ,   1997. 
 - ix,141p. :   ill.,figs. ;   22cm .  
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<br/><br/><label>ISBN: </label>0915642112  Rs. 175.00 
<br/><br/><label>Subjects--Index Terms: </label>RELATIVITY(PHYSICS) 
<br/><br/><label>Dewey Class. No.: </label>530.11  / HAW/N