( Book Product ) 

• ISBN bar code 9780521815970 ξ2 registered May 11 2012
  
• ISBN bar code 9780521815970 ξ1 registered May 11 2012
  
• Product category is Book

     
     

     
     
 

 References
     
     

     
^  (2012). , Cambridge University Press. Product. ISBN 9780521815970 (revised May 2012)
^  (2012). 9780521815970, Cambridge University Press. Wiki. ISBN 9780521815970 (revised Oct 2012)