Years's Best SF 21 / 
Edited by David G.Hartwell and Kathryn Cramer 
 - U.S.A :  Harper Collins Publishers;  2007. 
 - xii, 483 p.  17 cm. 
<br/><br/><label>ISBN: </label>9780061252082 
<br/><br/><label>Dewey Class. No.: </label>FIC  / H259y