Al-Khalili, Jim,  1962- <br/><br/>
Black holes, wormholes & time machines / 
 Black holes, wormholes, and time machines 
Jim Al-Khalili 
 - Bristol, U.K. :  Institute of Physics,  1999 
 - xxii, 265 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references (p. 254-258) and index 
<br/><br/><label>ISBN: </label>0585267952 (electronic bk.) 0750305606 (pbk. : alk. paper)  RM91.36 
<br/><br/><label>LCCN: </label>99-046327 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space and time