Approaches to quantum gravity/ 
Daniele Oviti 
 - Cambridge :  Cambridge  2009 
 - xix, 583p. 
<br/><br/><label>ISBN: </label>978-0-521-86045 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>539.72  / Ov4