Gravity Engines :  The Other Side Of Black Holes 

 - 1st Ed. 
 - London  Penguin Books  2012 
 - ix, 252 pages  19 cm 
<br/><br/><label>ISBN: </label>9780241957356 
<br/><br/><label>Dewey Class. No.: </label>523.8875 SCHA