Al-Khalili, Jim,  1962- <br/><br/>
Black holes, wormholes, and time machines / 
Jim Al-Khalili. 
 - 2nd ed. 
 - Boca Raton, FL :  Taylor & Francis,  c2012. 
 - xxii, 184 p.  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781439885598 (pbk. : alk. paper) 1439885591 (pbk. : alk. paper) 
<br/><br/><label>LCCN: </label>2011041748 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space and time--Popular works.<br/>Cosmology--Popular works.
<br/><br/><label>LC Class. No.: </label>QC173.59.S65  / A4 2012 
<br/><br/><label>Dewey Class. No.: </label>530.11