New English file : upper-intermediate : student's book.

MLA

Oxenden, Clive, and Christina Latham-Koenig. New English File : Upper-intermediate : Student's Book. Oxford: Oxford university press, 2008.

APA

Oxenden, C., & Latham-Koenig, C. (2008). New English file : upper-intermediate : student's book. Oxford: Oxford university press.

Chicago

Oxenden, Clive, and Christina Latham-Koenig. New English File: Upper-Intermediate : Student's Book.. Oxford: Oxford university press, 2008.