Al-Khalili, Jim <br/><br/>
Black holes wormholes and time machines 
Jim Al-Khalili 
 - Bristol  Institute of Physics  1999 
 - xxii, 265p 
<br/><br/> Includes bibliography and index 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0-7503-0560-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space and time
<br/><br/><label>Dewey Class. No.: </label>530.11  / ALB